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202 lines
106 KiB
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202 lines
106 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="C01F" definition-exists="true" date-revised="2017-08-01" status="published"><classification-symbol>C01F</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS </text><reference><text>metal hydrides </text><CPC-specific-text><text>monoborane, diborane or addition complexes thereof</text></CPC-specific-text><text> <class-ref scheme="cpc">C01B6/00</class-ref>; salts of oxyacids of halogens <class-ref scheme="cpc">C01B11/00</class-ref>; peroxides, salts of peroxyacids <class-ref scheme="cpc">C01B15/00</class-ref>; sulfides or polysulfides of magnesium, calcium, strontium, or barium <class-ref scheme="cpc">C01B17/42</class-ref>; thiosulfates, dithionites, polythionates <class-ref scheme="cpc">C01B17/64</class-ref>; compounds containing selenium or tellurium <class-ref scheme="cpc">C01B19/00</class-ref>; binary compounds of nitrogen with metals <class-ref scheme="cpc">C01B21/06</class-ref>; azides <class-ref scheme="cpc">C01B21/08</class-ref>; </text><CPC-specific-text><text>compounds other than ammonia or cyanogen containing nitrogen and non-metals and optionally metals <class-ref scheme="cpc">C01B21/082</class-ref>; amides or imides of silicon <class-ref scheme="cpc">C01B21/087</class-ref></text></CPC-specific-text><text>; metal </text><CPC-specific-text><text>imides or</text></CPC-specific-text><text> amides <class-ref scheme="cpc">C01B21/092</class-ref>, </text><CPC-specific-text><text><class-ref scheme="cpc">C01B21/0923</class-ref></text></CPC-specific-text><text>; nitrites <class-ref scheme="cpc">C01B21/50</class-ref>; </text><CPC-specific-text><text>compounds of noble gases <class-ref scheme="cpc">C01B23/0005</class-ref></text></CPC-specific-text><text>; phosphides <class-ref scheme="cpc">C01B25/08</class-ref>; salts of oxyacids of phosphorus <class-ref scheme="cpc">C01B25/16</class-ref>; carbides <class-ref scheme="cpc">C01B32/90</class-ref>; compounds containing silicon <class-ref scheme="cpc">C01B33/00</class-ref>; compounds containing boron <class-ref scheme="cpc">C01B35/00</class-ref>; compounds having molecular sieve properties but not having base-exchange properties <class-ref scheme="cpc">C01B37/00</class-ref>; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, <class-ref scheme="cpc">C01B39/00</class-ref>; cyanides <class-ref scheme="cpc">C01C3/08</class-ref>; salts of cyanic acid <class-ref scheme="cpc">C01C3/14</class-ref>; salts of cyanamide <class-ref scheme="cpc">C01C3/16</class-ref>; thiocyanates <class-ref scheme="cpc">C01C3/20</class-ref>; </text><CPC-specific-text><text>double sulfates of magnesium with sodium or potassium <class-ref scheme="cpc">C01D5/12</class-ref>; with other alkali metals <class-ref scheme="cpc">C01D15/00</class-ref>, <class-ref scheme="cpc">C01D17/00</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="C01F1/00" date-revised="2013-01-01" status="published"><classification-symbol>C01F1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F1/00" definition-exists="true" ipc-concordant="C01F1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of preparing compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or the rare earths, in general</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F3/00" definition-exists="true" ipc-concordant="C01F3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of beryllium</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F3/005" definition-exists="false" ipc-concordant="C01F3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F3/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluorides or double fluorides of beryllium with alkali metals or ammonium; Preparation of beryllium compounds therefrom</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F3/02" definition-exists="false" ipc-concordant="C01F3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxides</text></title-part><title-part><text>Hydroxides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F5/00" definition-exists="true" ipc-concordant="C01F5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of magnesium</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/02" definition-exists="false" ipc-concordant="C01F5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesia</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/04" definition-exists="false" ipc-concordant="C01F5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by oxidation of metallic magnesium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/06" definition-exists="false" ipc-concordant="C01F5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by thermal decomposition of magnesium compounds </text><reference><text>calcining magnesite or dolomite <class-ref scheme="cpc">C04B2/10</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/08" definition-exists="false" ipc-concordant="C01F5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by calcining magnesium hydroxide</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/10" definition-exists="false" ipc-concordant="C01F5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by thermal decomposition of magnesium chloride with water vapour</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/12" definition-exists="false" ipc-concordant="C01F5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by thermal decomposition of magnesium sulfate, with or without reduction</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/14" definition-exists="false" ipc-concordant="C01F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium hydroxide</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/145" definition-exists="false" ipc-concordant="C01F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Purification</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/16" definition-exists="false" ipc-concordant="C01F5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/20" definition-exists="false" ipc-concordant="C01F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by precipitation from solutions of magnesium salts with ammonia</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/22" definition-exists="false" ipc-concordant="C01F5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/24" definition-exists="false" ipc-concordant="C01F5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium carbonates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/26" definition-exists="false" ipc-concordant="C01F5/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium halides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/28" definition-exists="false" ipc-concordant="C01F5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluorides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/30" definition-exists="false" ipc-concordant="C01F5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chlorides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/305" definition-exists="false" ipc-concordant="C01F5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dehydrating ammonium or alkali magnesium chlorides, e.g. carnalite</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/32" definition-exists="false" ipc-concordant="C01F5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F5/34" definition-exists="false" ipc-concordant="C01F5/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dehydrating magnesium chloride containing water of crystallisation</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F5/36" definition-exists="false" ipc-concordant="C01F5/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bromides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/38" definition-exists="false" ipc-concordant="C01F5/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium nitrates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/40" definition-exists="false" ipc-concordant="C01F5/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium sulfates </text><reference><text>double sulfates of magnesium with sodium or potassium <class-ref scheme="cpc">C01D5/12</class-ref>, with other alkali metals </text><CPC-specific-text><text><class-ref scheme="cpc">C01D15/00</class-ref></text></CPC-specific-text><text>, <class-ref scheme="cpc">C01D17/00</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F5/42" definition-exists="false" ipc-concordant="C01F5/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F5/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnesium sulfites</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F7/00" definition-exists="true" ipc-concordant="C01F7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of aluminium</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/02" definition-exists="true" ipc-concordant="C01F7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium oxide</text></title-part><title-part><text>Aluminium hydroxide</text></title-part><title-part><text>Aluminates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/021" definition-exists="true" ipc-concordant="C01F7/021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/021</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>After-treatment of oxides or hydroxides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/022" definition-exists="false" ipc-concordant="C01F7/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/022</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Classification</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/023" definition-exists="false" ipc-concordant="C01F7/023" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/023</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Grinding, deagglomeration or disintegration</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/025" definition-exists="false" ipc-concordant="C01F7/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/025</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Granulation or agglomeration</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/026" definition-exists="false" ipc-concordant="C01F7/026" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/026</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Making or stabilising dispersions</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/027" definition-exists="false" ipc-concordant="C01F7/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/027</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Treatment involving fusion or vaporisation</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/028" definition-exists="false" ipc-concordant="C01F7/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/028</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Beta-aluminas</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/04" definition-exists="true" ipc-concordant="C01F7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/04</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation of alkali metal aluminates</text></title-part><title-part><text>Aluminium oxide or hydroxide therefrom </text><reference><text><class-ref scheme="cpc">C01F7/028</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/043" definition-exists="false" ipc-concordant="C01F7/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/043</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Lithium aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/046" definition-exists="false" ipc-concordant="C01F7/046" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/046</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Stabilisation of aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/06" definition-exists="true" ipc-concordant="C01F7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/06</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process </text><reference><text>obtaining aluminium oxide or hydroxide from the resulting aluminate solution <class-ref scheme="cpc">C01F7/14</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0606" definition-exists="false" ipc-concordant="C01F7/0606" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0606</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Making-up the alkali hydroxide solution from recycled spent liquor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0613" definition-exists="false" ipc-concordant="C01F7/0613" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0613</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Pretreatment of the minerals, e.g. grinding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/062" definition-exists="false" ipc-concordant="C01F7/062" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/062</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Digestion</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/0626" definition-exists="false" ipc-concordant="C01F7/0626" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0626</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Processes making use of tube digestion only</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/0633" definition-exists="false" ipc-concordant="C01F7/0633" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0633</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the use of additives</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/064" definition-exists="false" ipc-concordant="C01F7/064" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/064</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Apparatus for digestion, e.g. digestor vessels or heat exchangers</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0646" definition-exists="false" ipc-concordant="C01F7/0646" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0646</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Separation of the insoluble residue, e.g. of red mud</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/0653" definition-exists="true" ipc-concordant="C01F7/0653" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0653</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the flocculant added to the slurry </text><reference><text>final clarification of the aluminate solution <class-ref scheme="cpc">C01F7/47</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/066" definition-exists="false" ipc-concordant="C01F7/066" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/066</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Treatment of the separated residue</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0666" definition-exists="false" ipc-concordant="C01F7/0666" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0666</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Process control or regulation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0673" definition-exists="false" ipc-concordant="C01F7/0673" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0673</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from phosphate-containing minerals</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/068" definition-exists="false" ipc-concordant="C01F7/068" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/068</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from carbonate-containing minerals, e.g. dawsonite</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0686" definition-exists="false" ipc-concordant="C01F7/0686" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0686</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from sulfate-containing minerals, e.g. alunite</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/0693" definition-exists="false" ipc-concordant="C01F7/0693" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/0693</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from waste-like raw materials, e.g. fly ash or Bayer calcination dust</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/08" definition-exists="false" ipc-concordant="C01F7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/08</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by treating aluminous minerals with sodium carbonate, e.g. sinter processes </text><reference><text><class-ref scheme="cpc">C01F7/0613</class-ref>, <class-ref scheme="cpc">C01F7/066</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/085" definition-exists="false" ipc-concordant="C01F7/085" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/085</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>according to the lime-sinter process</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/10" definition-exists="false" ipc-concordant="C01F7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by treating aluminous minerals with alkali sulfates and reducing agents</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/12" definition-exists="false" ipc-concordant="C01F7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alkali metal aluminates from alkaline-earth metal aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/14" definition-exists="false" ipc-concordant="C01F7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Aluminium oxide or hydroxide from alkali metal aluminates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/141" definition-exists="false" ipc-concordant="C01F7/141" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/141</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from aqueous aluminate solutions by neutralisation with an acidic agent</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/142" definition-exists="false" ipc-concordant="C01F7/142" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/142</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with carbon dioxide</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/144" definition-exists="false" ipc-concordant="C01F7/144" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/144</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/145" definition-exists="false" ipc-concordant="C01F7/145" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/145</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>characterised by the use of a crystal growth modifying agent other than aluminium hydroxide seed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/147" definition-exists="false" ipc-concordant="C01F7/147" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/147</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Apparatus for precipitation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/148" definition-exists="false" ipc-concordant="C01F7/148" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/148</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Separation of the obtained hydroxide, e.g. by filtration or dewatering</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/16" definition-exists="true" ipc-concordant="C01F7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/16</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation of alkaline-earth metal aluminates or magnesium aluminates</text></title-part><title-part><text>Aluminium oxide or hydroxide therefrom </text><reference><text><class-ref scheme="cpc">C01F7/028</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/162" definition-exists="false" ipc-concordant="C01F7/162" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/162</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Magnesium aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/164" definition-exists="false" ipc-concordant="C01F7/164" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/164</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Calcium aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/166" definition-exists="false" ipc-concordant="C01F7/166" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/166</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Strontium aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/168" definition-exists="false" ipc-concordant="C01F7/168" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/168</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Barium aluminates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/18" definition-exists="false" ipc-concordant="C01F7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/18</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Aluminium oxide or hydroxide from alkaline earth metal aluminates</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/20" definition-exists="false" ipc-concordant="C01F7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/20</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/22" definition-exists="false" ipc-concordant="C01F7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/22</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>with halides or halogen acids</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/24" definition-exists="false" ipc-concordant="C01F7/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with nitric acid or nitrogen oxides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/26" definition-exists="false" ipc-concordant="C01F7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with sulfuric acids or sulfates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/28" definition-exists="false" ipc-concordant="C01F7/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with sulfurous acid</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/30" definition-exists="false" ipc-concordant="C01F7/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/30</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/302" definition-exists="true" ipc-concordant="C01F7/302" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/302</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Hydrolysis or oxidation of gaseous aluminium compounds in the gaseous phase</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/304" definition-exists="false" ipc-concordant="C01F7/304" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/304</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of organic aluminium compounds</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/306" definition-exists="false" ipc-concordant="C01F7/306" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/306</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/308" definition-exists="false" ipc-concordant="C01F7/308" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/308</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Thermal decomposition of nitrates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/32" definition-exists="false" ipc-concordant="C01F7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/32</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Thermal decomposition of sulfates including complex sulfates, e.g. alums</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/34" definition-exists="false" ipc-concordant="C01F7/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/36" definition-exists="true" ipc-concordant="C01F7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from organic aluminium salts</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/38" definition-exists="false" ipc-concordant="C01F7/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of aluminium oxide by thermal reduction of aluminous minerals</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/40" definition-exists="false" ipc-concordant="C01F7/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in the presence of aluminium sulfide</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/42" definition-exists="false" ipc-concordant="C01F7/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/422" definition-exists="false" ipc-concordant="C01F7/422" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/422</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by oxidation with a gaseous oxidator at a high temperature</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/424" definition-exists="false" ipc-concordant="C01F7/424" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/424</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using a plasma</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/426" definition-exists="false" ipc-concordant="C01F7/426" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/426</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by applying mechanical energy to solid aluminium at a low temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/428" definition-exists="false" ipc-concordant="C01F7/428" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/428</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by oxidation in an aqueous solution</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/44" definition-exists="false" ipc-concordant="C01F7/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/44</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/441" definition-exists="false" ipc-concordant="C01F7/441" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/441</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by calcination</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/442" definition-exists="false" ipc-concordant="C01F7/442" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/442</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>in presence of a calcination additive</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/444" definition-exists="false" ipc-concordant="C01F7/444" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/444</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Apparatus therefor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/445" definition-exists="false" ipc-concordant="C01F7/445" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/445</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>making use of a fluidised bed</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/447" definition-exists="false" ipc-concordant="C01F7/447" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/447</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by wet processes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/448" definition-exists="false" ipc-concordant="C01F7/448" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/448</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/46" definition-exists="false" ipc-concordant="C01F7/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/46</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Purification of aluminium oxide, aluminium hydroxide or aluminates </text><reference><text><class-ref scheme="cpc">C01F7/028</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/47" definition-exists="false" ipc-concordant="C01F7/47" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/47</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/473" definition-exists="false" ipc-concordant="C01F7/473" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/473</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Removal of organic compounds, e.g. sodium oxalate</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/476" definition-exists="false" ipc-concordant="C01F7/476" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/476</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by oxidation</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/48" definition-exists="false" ipc-concordant="C01F7/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/48</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Halides, with or without other cations besides aluminium</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/50" definition-exists="false" ipc-concordant="C01F7/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluorides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/52" definition-exists="false" ipc-concordant="C01F7/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/52</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Double compounds containing both fluorine and other halide groups</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/54" definition-exists="false" ipc-concordant="C01F7/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Double compounds containing both aluminium and alkali metals or alkaline-earth metals</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/56" definition-exists="false" ipc-concordant="C01F7/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chlorides </text><reference><text>containing fluorine <class-ref scheme="cpc">C01F7/52</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C01F7/56</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">C01F7/57</class-ref>.<br/>Groups <class-ref scheme="cpc">C01F7/56</class-ref> and <class-ref scheme="cpc">C01F7/57</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/57" definition-exists="false" ipc-concordant="C01F7/57" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/57</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Basic aluminium chlorides, e.g. polyaluminium chlorides</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C01F7/57</class-ref> is incomplete pending reclassification of documents from group <class-ref scheme="cpc">C01F7/56</class-ref>.<br/>Groups <class-ref scheme="cpc">C01F7/56</class-ref> and <class-ref scheme="cpc">C01F7/57</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/58" definition-exists="false" ipc-concordant="C01F7/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation of anhydrous aluminium chloride</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/60" definition-exists="false" ipc-concordant="C01F7/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from oxygen-containing aluminium compounds</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/62" definition-exists="false" ipc-concordant="C01F7/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/64" definition-exists="false" ipc-concordant="C01F7/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bromides </text><reference><text>containing fluorine <class-ref scheme="cpc">C01F7/52</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/66" definition-exists="false" ipc-concordant="C01F7/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/66</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Nitrates, with or without other cations besides aluminium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/68" definition-exists="false" ipc-concordant="C01F7/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/68</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Aluminium compounds containing sulfur</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/70" definition-exists="false" ipc-concordant="C01F7/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/72" definition-exists="false" ipc-concordant="C01F7/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfites</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/74" definition-exists="false" ipc-concordant="C01F7/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F7/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/741" definition-exists="false" ipc-concordant="C01F7/741" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/741</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation from elemental aluminium or elemental aluminium containing materials, e.g. foil or dross</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/743" definition-exists="false" ipc-concordant="C01F7/743" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/743</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation from silicoaluminious materials, e.g. clays or bauxite</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/745" definition-exists="false" ipc-concordant="C01F7/745" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/745</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Preparation from alums, e.g. alunite</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/746" definition-exists="false" ipc-concordant="C01F7/746" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/746</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>After-treatment, e.g. dehydration or stabilisation</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/748" definition-exists="false" ipc-concordant="C01F7/748" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/748</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/76" definition-exists="false" ipc-concordant="C01F7/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/76</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations, e.g. alums</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/762" definition-exists="false" ipc-concordant="C01F7/762" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/762</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Ammonium or alkali metal aluminium sulfates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="C01F7/765" definition-exists="false" ipc-concordant="C01F7/765" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/765</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Ammonium aluminium sulfates</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F7/767" definition-exists="false" ipc-concordant="C01F7/767" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/767</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Alkaline earth metal aluminium sulfates</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/77" definition-exists="false" ipc-concordant="C01F7/77" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/77</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Aluminium carbonates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F7/78" definition-exists="true" ipc-concordant="C01F7/78" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/78</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen </text><reference><text>aluminates <class-ref scheme="cpc">C01F7/02</class-ref>; compounds containing aluminium, fluorine and alkali or alkaline earth metals <class-ref scheme="cpc">C01F7/54</class-ref>; nitrates containing other cations besides aluminium <class-ref scheme="cpc">C01F7/66</class-ref>; sulfides, sulfites or sulfates containing other cations besides aluminium <class-ref scheme="cpc">C01F7/70</class-ref> - <class-ref scheme="cpc">C01F7/74</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C01F7/78</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">C01F7/784</class-ref>.<br/>Groups <class-ref scheme="cpc">C01F7/78</class-ref> and <class-ref scheme="cpc">C01F7/784</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/782" definition-exists="false" ipc-concordant="C01F7/782" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/782</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>containing carbonate ions, e.g. dawsonite</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-source">Group <class-ref scheme="cpc">C01F7/782</class-ref> is impacted by reclassification into group <class-ref scheme="cpc">C01F7/784</class-ref>.<br/>Groups <class-ref scheme="cpc">C01F7/782</class-ref> and <class-ref scheme="cpc">C01F7/784</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/784" definition-exists="false" ipc-concordant="C01F7/784" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/784</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Layered double hydroxide, e.g. comprising nitrate, sulfate or carbonate ions as intercalating anions</text></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph warning-type="reclass-destination">Group <class-ref scheme="cpc">C01F7/784</class-ref> is incomplete pending reclassification of documents from groups <class-ref scheme="cpc">C01F7/78</class-ref> and <class-ref scheme="cpc">C01F7/782</class-ref>.<br/>Groups <class-ref scheme="cpc">C01F7/78</class-ref>, <class-ref scheme="cpc">C01F7/782</class-ref> and <class-ref scheme="cpc">C01F7/784</class-ref> should be considered in order to perform a complete search.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F7/785" definition-exists="true" ipc-concordant="C01F7/785" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/785</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Hydrotalcite</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/786" definition-exists="true" ipc-concordant="C01F7/786" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/786</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>containing, besides aluminium, only anions, e.g. Al[OH]<sub>x</sub>Cl<sub>y</sub>[SO<sub>4</sub>]<sub>z</sub> </text><reference><text>mixed halides <class-ref scheme="cpc">C01F7/48</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F7/788" definition-exists="false" ipc-concordant="C01F7/788" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F7/788</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>Ammonium aluminium fluorides, e.g. ammonium hexafluoroaluminate</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F11/00" definition-exists="true" ipc-concordant="C01F11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of calcium, strontium, or barium </text><reference><text><class-ref scheme="cpc">C01F7/00</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/005" definition-exists="false" ipc-concordant="C01F11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparation involving liquid-liquid extraction, absorption or ion-exchange</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/02" definition-exists="false" ipc-concordant="C01F11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oxides or hydroxides </text><reference><text>production of lime <class-ref scheme="cpc">C04B2/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/04" definition-exists="false" ipc-concordant="C01F11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by thermal decomposition</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/06" definition-exists="false" ipc-concordant="C01F11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of carbonates</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/08" definition-exists="false" ipc-concordant="C01F11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by reduction of sulfates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/10" definition-exists="false" ipc-concordant="C01F11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from sulfides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/12" definition-exists="false" ipc-concordant="C01F11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from silicates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/16" definition-exists="false" ipc-concordant="C01F11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/18" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carbonates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/181" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/181</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/182" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO<sub>3</sub>-seeds</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/183" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the additive being an organic compound</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/184" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/184</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparation of calcium carbonate by carbonation of solutions based on non-aqueous solvents</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/185" definition-exists="true" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>After-treatment, e.g. grinding, purification, conversion of crystal morphology</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/186" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Strontium or barium carbonate</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/187" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/187</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Strontium carbonate</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/188" definition-exists="false" ipc-concordant="C01F11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Barium carbonate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/20" definition-exists="false" ipc-concordant="C01F11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Halides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/22" definition-exists="false" ipc-concordant="C01F11/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluorides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/24" definition-exists="false" ipc-concordant="C01F11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chlorides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/26" definition-exists="false" ipc-concordant="C01F11/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from sulfides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/28" definition-exists="false" ipc-concordant="C01F11/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by chlorination of alkaline-earth metal compounds</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/30" definition-exists="false" ipc-concordant="C01F11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Concentrating</text></title-part><title-part><text>Dehydrating</text></title-part><title-part><text>Preventing the adsorption of moisture or caking</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F11/32" definition-exists="false" ipc-concordant="C01F11/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Purification</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/34" definition-exists="false" ipc-concordant="C01F11/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bromides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/36" definition-exists="false" ipc-concordant="C01F11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Nitrates</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/38" definition-exists="false" ipc-concordant="C01F11/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation with nitric acid or nitrogen oxides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/40" definition-exists="false" ipc-concordant="C01F11/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preparation by double decomposition with nitrates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/42" definition-exists="false" ipc-concordant="C01F11/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Double salts </text><reference><text>with magnesium <class-ref scheme="cpc">C01F5/38</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/44" definition-exists="false" ipc-concordant="C01F11/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Concentrating</text></title-part><title-part><text>Crystallisating</text></title-part><title-part><text>Dehydrating</text></title-part><title-part><text>Preventing the absorption of moisture or caking</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/46" definition-exists="true" ipc-concordant="C01F11/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfates </text><reference><text>dehydration of gypsum </text><CPC-specific-text><text>for the production of calcium sulfate cements</text></CPC-specific-text><text> <class-ref scheme="cpc">C04B11/02</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/462" definition-exists="false" ipc-concordant="C01F11/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/462</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfates of Sr or Ba</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/464" definition-exists="false" ipc-concordant="C01F11/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/464</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sulfates of Ca from gases containing sulfur oxides</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/466" definition-exists="true" ipc-concordant="C01F11/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/466</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Conversion of one form of calcium sulfate to another</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F11/468" definition-exists="false" ipc-concordant="C01F11/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/468</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Purification of calcium sulfates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F11/48" definition-exists="false" ipc-concordant="C01F11/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F11/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sulfites</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F13/00" definition-exists="true" ipc-concordant="C01F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of radium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F15/00" definition-exists="true" ipc-concordant="C01F15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>C01F15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compounds of thorium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="C01F17/00" definition-exists="true" ipc-concordant="C01F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Compounds of rare earth metals</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this group, the following expression is used with the meaning indicated; "rare earth metals" means elements from the group of the lanthanides as well as scandium or yttrium, taken alone or in combination.</note-paragraph><note-paragraph>When classifying a compound in groups <class-ref scheme="cpc">C01F17/20</class-ref> - <class-ref scheme="cpc">C01F17/38</class-ref>, then its specific preparation or treatment must also be classified in groups <class-ref scheme="cpc">C01F17/10</class-ref> - <class-ref scheme="cpc">C01F17/17</class-ref> as long as the compound is characterised by its preparation or treatment and <u>vice versa</u>.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F17/10" definition-exists="false" ipc-concordant="C01F17/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/10</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Preparation or treatment, e.g. separation or purification</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/13" definition-exists="false" ipc-concordant="C01F17/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/13</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by using ion exchange resins, e.g. chelate resins</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/17" definition-exists="false" ipc-concordant="C01F17/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/17</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>involving a liquid-liquid extraction</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F17/20" definition-exists="false" ipc-concordant="C01F17/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/20</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Compounds containing only rare earth metals as the metal element</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/206" definition-exists="false" ipc-concordant="C01F17/206" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/206</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>oxide or hydroxide being the only anion</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/212" definition-exists="false" ipc-concordant="C01F17/212" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/212</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Scandium oxides or hydroxides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/218" definition-exists="false" ipc-concordant="C01F17/218" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/218</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Yttrium oxides or hydroxides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/224" definition-exists="false" ipc-concordant="C01F17/224" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/224</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Oxides or hydroxides of lanthanides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F17/229" definition-exists="false" ipc-concordant="C01F17/229" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/229</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Lanthanum oxides or hydroxides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="C01F17/235" definition-exists="false" ipc-concordant="C01F17/235" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/235</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cerium oxides or hydroxides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/241" definition-exists="false" ipc-concordant="C01F17/241" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/241</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>containing two or more rare earth metals, e.g. NdPrO<sub>3</sub> or LaNdPrO<sub>3</sub></text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/247" definition-exists="false" ipc-concordant="C01F17/247" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/247</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Carbonates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/253" definition-exists="false" ipc-concordant="C01F17/253" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/253</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Halides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/259" definition-exists="false" ipc-concordant="C01F17/259" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>C01F17/259</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Oxyhalides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/265" definition-exists="false" ipc-concordant="C01F17/265" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/265</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Fluorides</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/271" definition-exists="false" ipc-concordant="C01F17/271" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/271</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Chlorides</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/276" definition-exists="false" ipc-concordant="C01F17/276" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/276</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Nitrates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/282" definition-exists="false" ipc-concordant="C01F17/282" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/282</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Sulfates</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/288" definition-exists="false" ipc-concordant="C01F17/288" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/288</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Sulfides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/294" definition-exists="false" ipc-concordant="C01F17/294" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/294</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Oxysulfides</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="C01F17/30" definition-exists="false" ipc-concordant="C01F17/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/30</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La<sub>4</sub>S<sub>3</sub>Br<sub>6</sub> </text><reference><text><class-ref scheme="cpc">C01F17/247</class-ref> - <class-ref scheme="cpc">C01F17/294</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/32" definition-exists="false" ipc-concordant="C01F17/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/32</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>oxide or hydroxide being the only anion, e.g. NaCeO<sub>2</sub> or Mg<sub>x</sub>Ca<sub>y</sub>EuO</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="C01F17/34" definition-exists="false" ipc-concordant="C01F17/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/34</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Aluminates, e.g. YAlO<sub>3</sub> or Y<sub>3-x</sub>Gd<sub>x</sub>Al<sub>5</sub>O<sub>12</sub></text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/36" definition-exists="false" ipc-concordant="C01F17/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/36</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>halogen being the only anion, e.g. NaYF<sub>4</sub></text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="C01F17/38" definition-exists="false" ipc-concordant="C01F17/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>C01F17/38</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>sulfur being the only anion, e.g. CaLa<sub>2</sub>S<sub>4</sub></text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |