C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS C23G1/00 C23G1/00Cleaning or pickling metallic material with solutions or molten salts with organic solvents C23G5/02 C23G1/02with acid solutions C23G1/025acidic pickling pastes C23G1/04using inhibitors C23G1/06organic inhibitorsIn groups C23G1/061 - C23G1/068 an invention is classified in the last appropriate place C23G1/061nitrogen-containing compounds C23G1/063heterocyclic compounds C23G1/065sulfur-containing compounds C23G1/066phosphorus-containing compounds C23G1/068compounds containing a C=C bond C23G1/08Iron or steelIn groups C23G1/081 - C23G1/088 an invention is classified in the last appropriate place C23G1/081solutions containing H₂SO₄ C23G1/083solutions containing H₃PO₄ C23G1/085solutions containing HNO₃ C23G1/086solutions containing HF C23G1/088solutions containing organic acids C23G1/10Other heavy metals C23G1/103copper or alloys of copper C23G1/106refractory metals C23G1/12Light metals C23G1/125aluminium C23G1/14with alkaline solutions C23G1/16using inhibitors C23G1/18Organic inhibitors C23G1/19Iron or steel C23G1/20Other heavy metals C23G1/205refractory metals C23G1/22Light metals C23G1/24with neutral solutions C23G1/26using inhibitors C23G1/28with molten salts C23G1/30using inhibitors C23G1/32Heavy metals C23G1/34Light metals C23G1/36Regeneration of waste pickling liquors C23G3/00Apparatus for cleaning or pickling metallic material with organic solvents C23G5/04 C23G3/02for cleaning wires, strips, filaments continuously C23G3/021by dipping C23G3/022the objects following a helicoidal path C23G3/023by spraying C23G3/024by a combination of dipping and spraying C23G3/025Details of the apparatus, e.g. linings or sealing means C23G3/026for guiding the objects C23G3/027Associated apparatus, e.g. for pretreating or after-treating C23G3/028for thermal or mechanical pretreatment C23G3/029for removing the pickling fluid from the objects C23G3/04for cleaning pipes C23G5/00Cleaning or de-greasing metallic material by other methodsApparatus for cleaning or de-greasing metallic material with organic solventsMixtures of organic solvents are classified according to the major component C23G5/02using organic solvents C23G5/024containing hydrocarbons C23G5/028containing halogenated hydrocarbons C23G5/02803containing fluorine C23G5/02806containing only chlorine as halogen atom C23G5/02809containing chlorine and fluorine C23G5/02812Perhalogenated hydrocarbons C23G5/02816Ethanes C23G5/02819C₂Cl₃F₃ C23G5/02822C₂Cl₄F₂ C23G5/02825containing hydrogen C23G5/02829Ethanes C23G5/02832C₂H₃Cl₂F C23G5/02835C₂H₂Cl₂F₂ C23G5/02838C₂HCl₂F₃ C23G5/02841Propanes C23G5/02845C₃H₃ClF₄ C23G5/02848C₂H₂Cl₂F₄ C23G5/02851C₂HCl₂F₅ C23G5/02854characterised by the stabilising or corrosion inhibiting additives C23G5/02858Hydrocarbons C23G5/02861Oxygen-containing compounds C23G5/02864Alcohols C23G5/02867aliphatic C23G5/0287aromatic C23G5/02874Aldehydes or ketones C23G5/02877Ethers C23G5/0288Epoxy compounds C23G5/02883Nitrogen-containing compounds C23G5/02887Nitro-compounds C23G5/0289N-heterocyclics C23G5/02893Sulfur-containing compounds C23G5/02896Phosphorus-containing compounds C23G5/032containing oxygen-containing compounds C23G5/036having also nitrogen C23G5/04Apparatus C23G5/06using emulsions