| Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361) |
|---|
| 09/19/1991 | DE4103598A1 Alloy pickling in mixed acid bath - using nitrogen oxide(s) emission measurement to control amidosulphonic acid addn. |
| 09/19/1991 | DE4008379A1 Verfahren und anlage zum regenerieren von alkalihaltigen aluminiumbeizloesungen Method and system for regeneration of alkaline aluminiumbeizloesungen |
| 09/18/1991 | EP0447008A1 Use of blackening bath sludge |
| 09/03/1991 | US5045352 Treatment with pressurized air, pressurized acid, drying, coating with plastic |
| 09/03/1991 | CA1288211C Process for recycling sulphuric acid containing metal sulphate |
| 08/28/1991 | CN1054102A No-pollution and regeneratable rust-removing agent for iron and steel |
| 08/27/1991 | US5043022 Method of treating a one-side electrogalvanized steel sheet |
| 08/22/1991 | WO1991012305A1 Oil removal |
| 08/22/1991 | DE4004458A1 Cleaning and degreasing articles at high temp. - with aq. washing soln. contg. additives to increase b.pt. |
| 08/21/1991 | EP0442775A1 Pickling process for steel materials, in particular stainless steel |
| 08/21/1991 | EP0442197A2 Composition and method for improving adhesion of coatings to copper surfaces |
| 08/17/1991 | CA2029087A1 Composition and method for improving adhesion of coatings to copper surfaces |
| 08/14/1991 | EP0441175A2 Process and apparatus for purifying, recovering and recycling hot aqueous degreasing baths and spray washers |
| 08/14/1991 | EP0327572B1 Recovery of acids from materials comprising acid and salt |
| 08/14/1991 | DE4004191A1 Reducing acid losses in retardation plants - for sepg. acids and metal salts using acid-water-air boundary layer in column |
| 08/09/1991 | CA2035847A1 Method for pickling or cleaning materials of steel, in particular stainless steel |
| 08/08/1991 | WO1991011543A1 Process for removing oil from finely divided solid material, especially metal-containing production waste and soiled floors |
| 08/07/1991 | CN1053647A Chemical process of removing oxidized layer of stainless steel |
| 08/06/1991 | US5037545 Liquid recovery system and method |
| 08/06/1991 | US5037483 On-line iron clean-up |
| 08/06/1991 | US5037482 Contacting laminate with water, alkane sulfonic acid, surfactants and oxidizing agent to clean and micro-roughen |
| 08/01/1991 | DE4002154A1 Liq. cleaning e.g. of circuit boards - using cleaning liq. supply and regeneration circuits |
| 07/30/1991 | CA2018153A1 On-line iron clean-up |
| 07/25/1991 | DE4001851A1 Treating hot aq. degreasing liq. for reuse |
| 07/23/1991 | US5034148 Cleansing compositions |
| 07/17/1991 | CN1053095A Rust-removing paste and antirusting liq. for iron and steel |
| 07/16/1991 | US5032369 Sludge formation |
| 07/16/1991 | CA1286210C Aluminum cleaning process |
| 07/11/1991 | WO1991009691A1 Aqueous solutions especially for cleaning high strength steel |
| 07/09/1991 | US5030373 Surface-treating agents for copper and copper alloy |
| 07/03/1991 | EP0435382A1 Electrolytic process for treating waste pickling solutions or product streams containing metallic ions |
| 06/26/1991 | EP0434622A1 Molten salt stripping of electrode coatings |
| 06/21/1991 | WO1991009987A1 Peroxide composition for removing organic contaminants and method of using same |
| 06/20/1991 | CA2031454A1 Molten salt stripping of electrode coatings |
| 06/18/1991 | US5024783 Antiscaling, antideposit composition |
| 06/12/1991 | CN1052139A Furfuryl alcohol mixtures for use as cleaning agents |
| 06/11/1991 | US5022926 Corrosion control |
| 06/11/1991 | CA1284763C Composition and method for metal surface refinement |
| 05/29/1991 | EP0428816A1 Hard-surface cleaning compositions |
| 05/29/1991 | CN1051765A Alumetization catalytically by rare-earth |
| 05/28/1991 | US5019288 Cleaning composition for copper and copper alloys and method of manufacture thereof |
| 05/28/1991 | US5019172 Chemical treatment of aluminum cathodes in zinc electrowinning |
| 05/27/1991 | CA2003915A1 Descaling composition and methods for use |
| 05/24/1991 | CA2028512A1 Hard-surface cleaning compositions |
| 05/21/1991 | US5016810 Method for improving weldability of nickel aluminide alloys |
| 05/21/1991 | CA1284309C Electrodialytic recovery of mixed acids from mixed salts including fluoride anion |
| 05/16/1991 | DE3937833A1 Hot galvanising process with pickling and pretreatment baths - has liq. withdrawn from baths, evaporated and distillate returned to maintain iron salts low in flux soln. |
| 05/15/1991 | EP0426943A2 Agent and method for removing rosinbase solder flux |
| 05/15/1991 | CN1051400A Deashing agent for new cooking-pan |
| 05/15/1991 | CN1012625B Method for prepn. of metal surface cleaning liquid |
| 05/14/1991 | US5015298 Composition and method for removing iron containing deposits from equipment constructed of dissimilar metals |
| 05/14/1991 | CA1284124C Electrolytically coagulating and floating components in used cleaning bath |
| 05/08/1991 | EP0426512A2 Tetrahydrofurfuryl alcohol mixtures used as cleaning agents |
| 04/30/1991 | US5011539 Descaling of jacket of glass-lined instruments |
| 04/27/1991 | WO1991006621A1 Detergent composition |
| 04/27/1991 | CA2151849A1 Cleaning compositions |
| 04/27/1991 | CA2151848A1 Cleaning compositions |
| 04/27/1991 | CA2151847A1 Cleaning compositions |
| 04/27/1991 | CA2151846A1 Cleaning compositions |
| 04/25/1991 | WO1991006620A1 Alkyl polyethyleneglycol ethers as foam-inhibiting additives in cleaning agents |
| 04/25/1991 | DE3935374A1 Alkylpolyethylenglykolether als schaumdrueckende zusaetze fuer reinigungsmittel Alkyl polyethylene glycol ethers as schaumdrueckende additives for detergents |
| 04/25/1991 | CA2070415A1 Alkyl polyethyleneglycol ethers as foam-suppressing additives in cleaning agents |
| 04/24/1991 | EP0424340A2 A method for pickling iron and steel surfaces |
| 04/23/1991 | US5009722 Process for producing base material for an aluminum offset printing plate |
| 04/23/1991 | US5009714 Oxidation of copper using gaseous oxygen, dissolving copper oxide with a solution of gaseous oxygen, ammonia and an inorganic ammonium salt |
| 04/20/1991 | CA2027294A1 Method for pickling iron and steel surfaces |
| 04/18/1991 | WO1991005079A1 Hydrogen peroxide solutions |
| 04/04/1991 | WO1991004355A1 Use of complexing agents to dissolve galactite |
| 03/28/1991 | DE3931007A1 Verwendung von komplexbildnern als lysierungsmittel fuer galactite Use of complex formers as lysing for galactite |
| 03/27/1991 | CN1012183B Reductive cleaning agent of copper and copper alloy |
| 03/21/1991 | WO1991003326A1 Compositions and methods for cleaning hard surfaces |
| 03/20/1991 | CN1050054A Improvement to rust remover |
| 03/13/1991 | EP0416126A1 Sulfuric acid composition having low surface tension |
| 03/12/1991 | US4999095 Recovery of mixed acids from mixed salts |
| 03/06/1991 | EP0415807A2 Acidic cleaning process for metal products containing titanium or a chemical element of the titanium family |
| 03/05/1991 | US4997588 Cleaner for lithographic printing plates free of aromatic hydrocarbons |
| 02/26/1991 | US4995956 Method and apparatus to control a salt stream to be treated in an electrodialytic water splitter |
| 02/21/1991 | WO1991002110A1 Treatment to reduce solder plating whisker formation |
| 02/21/1991 | WO1991002109A1 Process for the acid-bath pickling of metal products containing titanium or at least one chemical element of the titanium family |
| 02/20/1991 | CN1049383A Dredging agent for solid pipeline |
| 02/20/1991 | CN1049382A Alloy containing iron, manganese, silicon and nickel by form memory |
| 02/19/1991 | US4994157 Method and apparatus for descaling stainless steel |
| 02/12/1991 | US4992212 Alkaline light duty liquid detergents that are non-staining to aluminum |
| 02/12/1991 | US4992182 Scale removal treatment |
| 02/12/1991 | CA1280057C Enhanced cleaning procedure for copper alloy equipment |
| 02/06/1991 | EP0411061A1 Fe-Mn-Al-C ALLOYS AND THEIR TREATMENT. |
| 02/06/1991 | CN1049033A Detergent for new iron pot |
| 01/30/1991 | EP0410497A1 Process for the passivate rinsing of phosphate coatings |
| 01/22/1991 | CA1279243C Aqueous compositions for visual inspection and cleaning of metallic surfaces |
| 01/22/1991 | CA1279241C Removal of iron fouling in cooling water systems |
| 01/09/1991 | CN1048416A Process for large scale producing of high-effective slow-corrosion agent used in acid washing with hydrochloric acid and equipment thereof |
| 01/02/1991 | EP0406098A1 Process for dissolving oxyde deposited on a metallic substrate and its application to decontamination |
| 01/02/1991 | EP0404928A1 Method for radioactive decontamination of metal surfaces, particularly portions of primary circuits of water-cooled nuclear reactors |
| 01/01/1991 | US4981609 Compounds containing sulfur and amino groups |
| 12/26/1990 | CN1048069A Promoter for pickling iron and steel |
| 12/26/1990 | CN1010956B Method for reclaiming the used pickle of titanium and its alloy |
| 12/25/1990 | US4980076 Fluoride and chromium free acid etchant rinse for aluminum |
| 12/19/1990 | CN1010858B Cleaning agent and method for cleaning adhesive matter on rolling cylinder for electric selection of titanium |
| 12/18/1990 | US4978424 Descaling of jackets of glass-lined instruments |
| 12/12/1990 | CN1047707A Rust-removing cream |