Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361)
07/1995
07/04/1995US5429764 Liquid drain opener compositions based on sulfuric acid
06/1995
06/29/1995WO1995017536A1 Surface treatment method for aluminium or aluminium alloy components
06/28/1995EP0659466A1 Process for the purification of acid solutions
06/28/1995EP0568670A4 Regeneration of hydrochloric acid.
06/27/1995US5427709 Environmentally safe, ready-to-use, non-toxic, non-flammable, inorganic, aqueous cleaning composition
06/21/1995EP0658636A1 Corrosion inhibitor for metallic material, such as steel
06/20/1995US5425814 Method for quick turnaround of hydrocarbon processing units
06/15/1995WO1995016006A1 Wheel cleaning composition containing acid fluoride salts
06/15/1995WO1995015824A1 Method and machine for cleaning components
06/15/1995CA2177278A1 Wheel cleaning composition containing acid fluoride salts
06/15/1995CA2155668A1 Method and machine for cleaning components
06/15/1995CA2137837A1 Corrosion inhibitor
06/07/1995CN1103438A Rust remover
06/07/1995CN1103383A Process for treatment of sodium hydroxide waste liquor containing aluminum
06/06/1995US5421907 Process for cold cleaning oil-contaminated metal surfaces with 2-ethylhexyl esters of fatty acids
06/06/1995US5421906 Applying aqueous precleaning fluid, rinsing, applying extraction fluid, allowing to penetrate, washing to clean radionuclides, polychlorinated biphenyls, pesticides, herbicides, and heavy metals from porous surfaces
06/06/1995US5421899 Method for cleaning manufacturing lubricants and coolants from metal containers
06/01/1995DE4339502A1 Wet chemical removal process for hard material coatings
05/1995
05/31/1995CN1103113A Washing method using washing agent
05/24/1995EP0654546A1 Method for pickling and an installation therefor
05/23/1995US5417819 Removal of particles from surfaces after cleaning and electrobrightening
05/23/1995US5417775 Process for continuous titanium sheet pickling and passivation without using nitric acid
05/20/1995CA2127030A1 Ambient cleaners for aluminum
05/16/1995US5415797 Alkali silicate, an acrylic acid polymer, nonionic surfactant, for iron, zinc or aluminum metal
05/10/1995EP0652281A1 Aqueous alkaline composition
05/10/1995CN1102443A Technology method for refining waste concentrated nitric acid with flash vaporization
05/04/1995WO1995012011A1 A process for activating a metal surface for conversion coating
05/02/1995US5411645 Hydrogen assisted reduced oxide soldering system
05/02/1995US5411595 Post-etch, printed circuit board cleaning process
04/1995
04/27/1995WO1995011325A1 Purification method
04/26/1995EP0649702A1 Surface treatment method for fatigue-resistant solder
04/26/1995EP0531360B1 Cleaning of aluminium surfaces
04/26/1995CN1101950A Detergent for steel, aluminium and copper materials
04/25/1995US5409613 Recycling and recovery of aqueous cleaner solutions and treatment of associated rinse water
04/25/1995US5409569 Hydrofluoric acid, iodic acid, or lithium, potassium, or sodium salt; no heat or gas formation, storage stability
04/20/1995WO1995010379A1 Acid assisted cold welding and intermetallic formation and dental applications thereof
04/20/1995DE4340318C1 Method for regenerating a cleaning fluid and apparatus for the industrial cleaning of workpieces by means of a cleaning fluid
04/20/1995CA2173734A1 Acid assisted cold welding and intermetallic formation and dental applications thereof
04/12/1995EP0465620B1 Process for removing oil from finely divided solid material, especially metal-containing production waste and soiled floors
04/11/1995CA1335150C Process for the production or recovery of acids from metalliferous solutions of such acid
04/05/1995EP0646661A1 Method for removing soldering flux
03/1995
03/29/1995EP0644926A1 Process and composition for cleaning
03/29/1995CN1100759A Scale removing promoter with sulphuric acid pickling
03/28/1995US5401485 Reduction of residual chloride in iron oxides
03/23/1995WO1995008008A1 Metal treatment with acidic, rare earth ion containing cleaning solution
03/23/1995WO1995007752A1 Electrodialytic conversion of complexes and salts of metal cations
03/21/1995US5399203 Cleaning agent for floating and separation of oil, washing with water and steam
03/16/1995WO1995007153A1 Method of cleaning equipment
03/14/1995US5397495 Cleaning compounds for electronic circuits
03/14/1995US5397398 Contacting with composition containing aqueous sulfuric acid, corrosion inhibitor, and surfactant
03/01/1995EP0640698A1 Apparatus and method for purifying bath liquids
03/01/1995EP0640153A1 Method for cleaning aluminum at low temperatures.
03/01/1995CN1027764C Descaling agent for aluminium kettle
02/1995
02/28/1995US5393448 Aqueous electronic circuit assembly cleaner and method
02/28/1995US5393447 Composition and process for desmutting and deoxidizing without smutting
02/23/1995WO1995005441A1 Detergent mixtures
02/22/1995EP0639531A1 Process for treating waste washing water used for impregnation
02/16/1995WO1995004844A1 Process and apparatus for regeneration of volatile acids
02/15/1995EP0638664A1 Process and apparatus for regenerating solutions containing metal ions and sulfuric acid
02/15/1995CN1098748A Cleaning agent for cold-rolled silicon steel plate
02/14/1995US5389156 Decontamination of hydrocarbon process equipment
02/14/1995CA2104854A1 Metal surface treatments
02/09/1995WO1995003994A1 Method for reclaiming metal sulfate-containing waste sulfuric acid
02/09/1995CA2145986A1 Method for reclaiming metal sulfate-containing waste sulfuric acid
02/01/1995EP0636712A1 Chemical cleaning process for metall workpieces
02/01/1995EP0636711A1 Acidic cleaning aqueous solution for aluminum and aluminum alloy and method for cleaning the same
02/01/1995EP0636710A1 Method for cleaning articles
02/01/1995EP0636577A1 Process for treatment of sodium hydroxide waste liquor containing aluminium
02/01/1995EP0636231A1 Method of cleaning and maintaining hot water heaters
01/1995
01/28/1995CA2128846A1 Process for cleaning articles
01/25/1995EP0635586A1 Process for regenerating hydrochloric acid from pickling installations
01/24/1995US5384064 Hydrochloric acid pickling accelerator
01/19/1995WO1995002080A1 Pickled steel product subsequent treatment process and device, in particular for pickled carbon steel hot strips
01/19/1995WO1995002079A1 Composition and process for desmutting and deoxidizing without smutting
01/19/1995DE4323507A1 Verfahren und Vorrichtung zur Pflege, Reinigung und/oder Desinfektion von Absauganlagen in zahnärztlichen Praxen Method and apparatus for the care, cleaning and / or disinfection of suction systems in dental practices
01/19/1995CA2166795A1 Composition and process for desmutting and deoxidizing without smutting
01/18/1995CN1097473A Metal cleaning agent for preventing rust
01/17/1995US5382295 Alkaline cleaning solution with builders, phosphonates and sequestering agents
01/17/1995US5381807 Method of stripping resists from substrates using hydroxylamine and alkanolamine
01/17/1995CA1333991C Non-smutting acid etchant rinse for aluminum containing at least 20ppm of ferric ion
01/12/1995WO1995001416A1 Machine dishwashing composition containing oxygen bleach and paraffin oil and benzotriazole compound silver tarnishing inhibitors
01/12/1995WO1995001306A1 Method of recycling amine saponifiers used in cleaning electronic circuit boards
01/12/1995WO1995001305A1 Method of treating aqueous alkaline effluents derived from cleaning electronic circuit assemblies
01/12/1995CA2140909A1 Method of treating aqueous alkaline effluents derived from cleaning electronic circuit assemblies
01/12/1995CA2140906A1 Method of recycling amine saponifiers used in cleaning electronic circuit boards
01/11/1995EP0633221A1 Thickened aqueous composition of sulfamic acid
01/10/1995US5380468 Aqueous alkaline composition for cleaning aluminum and tin surfaces
01/10/1995CA2127628A1 Thickened aqueous sulfamic acid composition
01/05/1995WO1995000682A1 Process for removing corrosion from the surfaces of articles made of ferrous metals
01/05/1995WO1995000681A1 Method for decontamination
01/03/1995US5377398 Method for descaling metal strip utilizing anhydrous salt
01/03/1995CA2017737C Process for cleaning porous components
12/1994
12/28/1994EP0630992A1 Process for cleaning metallic workpieces
12/28/1994EP0630427A1 Composition and process for cleaning tinplate stock.
12/22/1994WO1994029495A1 Rapidly dissolving and storage stable titanium phosphate containing activating composition
12/13/1994US5372743 Surfactant composition, degreasing composition and degreasing bath
12/13/1994US5372741 Desoiling metal substrates; free of phosphates, chelates, silicates; aromatic-aldehyde polymer
12/08/1994WO1994024050A3 Method of purifying soluions containing alkali-metal aluminates
12/07/1994EP0627021A1 Process for metallizing non-conducting surfaces, and the use of hydroxymethyl sulphinic acid in that process.
12/07/1994EP0519987B1 Process and device for regenerating alkaline solutions for pickling aluminium
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