Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361)
12/2000
12/20/2000EP0970172A4 Composition and method for cleaning/degreasing metal surfaces, especially composites of copper and aluminum
12/19/2000US6162301 Scrubbing using an acidic cleaning solution
12/12/2000US6158957 Thermal barrier removal process
12/07/2000WO2000072684A2 A composition and method for cleaning surfaces
12/06/2000EP1057240A1 Method for purifying the cooling circuit of an alternator stator operating in ventilated circuit, and implementing device
12/05/2000US6156661 Post clean treatment
12/05/2000US6156440 Stainless steel is treated by cleaning, forming a colored oxide film on the surface of the cleaned stainless steel by heating in an oxidizing atmosphere, removing a portion of colored oxide film to expose passivating oxide film
12/05/2000US6156129 Liquid metal cleaner for aqueous system
11/2000
11/30/2000DE19924589A1 Hard material layers stripping from hard metal substrates, e.g. tool and machine component scrap, involves using a solution of an oxidizing mineral acid and a hydrogen halide compound
11/28/2000US6153015 Process for removing soap-contaminated conversion layers on metal workpieces
11/28/2000CA2200615C Stainless steel alkali treatment
11/23/2000WO2000070125A1 Metal cleaning process
11/23/2000WO2000070123A1 Process for the surface treatment of magnesium alloys
11/23/2000WO2000069588A1 High capacitance niobium powders and electrolytic capacitor anodes
11/23/2000WO2000069577A1 Methods for cleaning microelectronic substrates using ultradilute cleaning liquids
11/23/2000CA2372921A1 High capacitance niobium powders and electrolytic capacitor anodes
11/21/2000US6149744 Method of making austenitic stainless steel sheet
11/14/2000US6146692 Caustic process for replacing a thermal barrier coating
11/09/2000WO2000036184A3 Apparatus and process to clean and strip coatings from hardware
11/08/2000EP1050605A2 Process for pickling stainless steel in the absence of nitric acid and in the presence of chloride ions
11/07/2000US6143706 For cleaning substrates such as semiconductors; prevents substrate surface from being contaminated with metal impurities from the surface treatment composition and stably provides clean substrate surface
11/02/2000EP1049141A1 Novel detergent and cleaning method using it
11/01/2000CN1057983C Drum descaling method of waste water centrifugal extraction and reverse extraction unit
10/2000
10/31/2000US6140291 Contacting metal surface with an organic solvent-free aqueous cleaning solution containing an alkaline salt and a surfactant, the solution containing less than 3 weight% phosphate, and removing the impurities from the surface
10/31/2000US6140287 Cleaning compositions for removing etching residue and method of using
10/31/2000CA2190183C Aluminum desmut composition and process
10/25/2000EP1045936A1 Aqueous compositions comprising complexing agents and uses therof
10/25/2000EP0979208A4 Composition and method for reducing copper oxide to metallic copper
10/25/2000CN1057801C Pickled steel product subsequent treatment process and device, in particular for pickled carbon steel hot strips
10/24/2000US6136766 For cleaning industrial parts consisting of a cyclic polyorganosiloxane and a hydrophilic solvent
10/24/2000CA2182674C Acidic cleaning compositions
10/18/2000EP1044465A1 Wet processing methods for the manufacture of electronic components
10/17/2000US6132621 Method of selectively removing zinc from acid effluents
10/17/2000US6132520 Removal of thermal barrier coatings
10/12/2000WO2000060034A1 Process for cleaning a metal container providing enhanced mobility
10/11/2000EP1043422A1 Method of controlling NOx gas emission by hydrogen peroxide
10/05/2000WO2000058228A1 Rust and scale removal composition and process
10/05/2000DE19908434A1 Verfahren und Reinigungsflüssigkeit zum Flüssigreinigen von Gegenständen Procedures and cleaning liquid for liquid cleaning of objects
10/04/2000EP1040211A1 Method for pickling and passivating special steel
10/03/2000US6126997 Method for treating magnesium die castings
10/03/2000US6126755 Stabilizing hydrogen peroxide decomposition which is used for removal of metal oxide from the metal surface by employing a combination of a hydroxybenzoic acid, a hydrotropic aryl sulfonic acid, and a hydrophobic alkylaryl sulfonic acid
10/03/2000CA2041892C Formation of conversion coatings on surfaces of zinc or zinc alloys
09/2000
09/28/2000DE10006990A1 Acid is recovered from metal-containing solutions, e.g. spent pickling solutions, using jet scrubbers for dust and acid vapor removal from pyrolytic decomposition reactor off-gas
09/27/2000EP1038991A1 Process recovering acids from metalliferous solutions of these acids
09/27/2000CN1268244A Wet processing methods for the manufacture of electronic components
09/27/2000CN1267749A Lead-tin anode scavenger for chromium plating process
09/27/2000CN1267747A Process for recovering acid from acid metal solution
09/26/2000US6124253 Mixture comprising alkali metal carbonate and/or bicarbonate, nonionic surfactant mixture of ethylene oxide fatty alcohol adducts and n-(n-alkyl)-2-pyrrolidone; degreaser, antisoilant
09/20/2000EP1036219A1 Method for pickling steel products
09/20/2000EP1036217A2 Process and apparatus for steel band spray pickling
09/20/2000EP1036144A1 Composition and process for cleaning and deoxidizing aluminum
09/20/2000CN1266819A Flocculant of polyiron chloride prepared from waste hydrochloric acid as pickling liquid of iron and steel and its preparing process
09/20/2000CN1056651C Method for treatment of cold-rolled stainless steel strip or sheet
09/19/2000US6121217 Removal of process residue from substrate of titanium (metal, alloy, or compound) with aqueous solution of alkanolamine, gallic acid or catechol chelating agent, hydroxylamine
09/19/2000US6121058 Method for removing accumulated solder from probe card probing features
09/14/2000WO2000053824A1 Method for eliminating copper from microelectronic components
09/08/2000WO2000018986A9 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions
08/2000
08/31/2000WO2000051135A1 Treatment of radioactively contaminated metals
08/31/2000WO2000050666A1 Method for treating magnesium-based metal formed article and treating solution therefor
08/31/2000WO2000050555A1 Method and cleaning fluid for the wet cleaning of objects
08/29/2000US6110881 That remove etching residue from substrates; nucleophilic amine compound of given formula having oxidation and reduction potentials, alkanolamine(s), water, and stabilizing chelating agent that prevents resettling of residue
08/23/2000EP1029117A1 Method for separating layers from articles
08/17/2000WO2000047518A1 Method for neutralising and/or regenerating acid baths and plant that carries out this method
08/16/2000EP1028088A1 Method for neutralising and/or regenerating acid baths and plant that carries out this method
08/16/2000CN1263202A Sandstone acid
08/10/2000WO2000046423A1 Cleaner composition and method of use thereof
08/10/2000CA2361606A1 Cleaner composition and method of use thereof
08/09/2000EP1025582A1 Methods and apparatus for cleaning semiconductor substrates after polishing of copper film
08/09/2000EP0909344B1 Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically
08/08/2000US6099655 Wet chemical process for removing an abrasive alumina seal tooth coating
08/02/2000EP1023137A1 Improving fillet forming of brazeable aluminum articles
08/02/2000CN1261630A Acid washing process for stainless steel
08/01/2000US6096137 Calculating concentrations of acid and iron and descaling velocity of steel strip at different positions
07/2000
07/27/2000WO2000043321A1 Preparation for dissolving scales, oxide layers and rust
07/27/2000DE19901401A1 Verfahren und Vorrichtung zum Beizen und Reinigen von gewalztem Stahlband Method and device for pickling and cleaning of rolled steel strip
07/26/2000EP1022357A1 Surface treatment process for stainless steels
07/26/2000EP1022349A1 Method for removing metals from a citric acid cleaning solution
07/20/2000WO2000042240A1 Method and device for scouring and cleaning rolled steel strip
07/20/2000CA2359833A1 Method and device for scouring and cleaning rolled steel strip
07/19/2000EP1020235A1 Device and method for the maintenance of treatment baths in cleaning installations
07/18/2000US6090765 Composition for cleaning hard surfaces
07/18/2000US6090360 Washing the particulate silicon with a solvent having a boiling point lower than the sublimation temperature of metal salt to remove the higher boiling silicon compounds and any residue of monosilanes, spary drying to remove solvent
07/13/2000WO2000040777A1 Surface-treating agent for magnesium-based part and method of surface treatment
07/13/2000WO2000040518A1 Hf etching and oxide scale removal
07/13/2000WO2000018986A8 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions
07/11/2000CA2189345C Method of removing chloride ion or a compound thereof from a surface contaminated therewith
07/04/2000US6083896 Aqueous cleaning solution and method for cleaning aluminum-based metals
06/2000
06/28/2000EP1013800A2 Process for pickling stainless steel
06/28/2000EP1013798A2 Thermal barrier coating removal process
06/28/2000EP1013797A1 Method of removing hot corrosion products from a diffusion aluminide coating
06/22/2000WO2000036184A2 Apparatus and process to clean and strip coatings from hardware
06/21/2000EP1010776A1 Caustic process for replacing thermal barrier coatings
06/15/2000WO2000034551A1 Cleaning solutions containing citric acid and uses thereof
06/14/2000EP1008676A2 Accelerated steel strip pickling process and device for carrying out the process
06/14/2000CN1256325A Oil pipe stain eliminating technology
06/13/2000US6074752 Metal fibre agglomerate and process for manufacturing the same
06/08/2000WO2000033061A1 Device and method to control steel pickling processes
06/08/2000WO2000023201A9 Superalloy component with abrasive grit-free coating
06/08/2000CA2353387A1 Device and method to control steel pickling processes
06/02/2000WO2000031218A1 Method for machining and cleaning metal
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