Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361)
12/1999
12/08/1999EP0698072B1 Process for metal cleaning
12/08/1999CN1047156C Cleaning agent for cooling water system of vehicle
12/08/1999CN1047152C Reduction of residue chloride in iron oxides
12/07/1999US5998348 Concentrate for a dihydrogen phosphate-based metal cleaning composition that does not damage plastic
12/07/1999US5997658 Aqueous stripping and cleaning compositions
12/07/1999CA2193494C Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution
12/07/1999CA2094165C Process for vessel decontamination
12/02/1999WO1999061179A1 Method for cleaning a container
12/01/1999EP0960221A1 Method for pickling products in a metal alloy containing iron and in titanium and alloys thereof
11/1999
11/30/1999US5993559 Forcing a tin removal fluid to flow in contact with a component part maintaining the component part in contact with the tin removal fluid at a temperature above 95.degree. c. and at a positive pressure between 3 bar and 6 bar in a closed
11/30/1999US5993558 Contacting the metal surface with a sufficient amount of an aqueous salt solution of an inorganic acid, the salt being aluminum or iron chloride, nitrate or sulfate, to dissolve the fluoride-containing scale
11/30/1999US5992196 Process for pickling a piece of steel and in particular a sheet strip of stainless steel
11/25/1999WO1999060448A1 Silicate-containing alkaline compositions for cleaning microelectronic substrates
11/25/1999DE19920982A1 Degreasing and descaling vessel, especially conventional power station boiler
11/24/1999EP0958405A1 Metal surface treatment solutions and process
11/16/1999US5985810 For cleaning industrial parts consisting of polyorganosiloxane, surfactant, and hydrophilic solvent
11/16/1999US5983910 Method and apparatus for recycling coolant for a cutting machine
11/10/1999EP0880566B1 Use of quaternized imidazoles as nonferrous metal corrosion inhibitors and antifreeze concentrates and coolant compositions containing said corrosion inhibitors
11/09/1999US5981454 Post clean treatment composition comprising an organic acid and hydroxylamine
11/09/1999US5980850 Recoverying hydrofluoric acid, hydrochloric acid, nitric acid, or a mixture of these acids from waste pickling liquor by pre-concentrating, heat exchanging, pyrohydrolysis, separating from the metals and absorption, condensation
11/09/1999US5980643 Workpiece, including exposed aluminum metallized surfaces, is treated with alkaline, water-based solution containing one or more components that form aluminosilicate on exposed aluminum metallized surfaces to remove residues
11/03/1999EP0898621B1 Process for removing soap-contaminated conversion layers on metal workpieces
11/02/1999US5977040 Cleaning compositions
11/02/1999US5976983 Method of cleaning semiconductor wafers after lapping
11/02/1999US5976282 Method for producing austenitic steel plate with excellent surface brightness and corrosion resistance
10/1999
10/26/1999US5972424 Removing ceramic and aluminum oxide layers from engine run gas turbine engine component, such that atleast some bond coat remains on the component, analyzing if it meets minimum standard, coating flash layer, new alumina and ceramic layers
10/26/1999US5972122 Used in zero-mercury, zinc air electrochemical cell; involves contacting anode cup with aqueous detersive system containing one or more surfactants and subjected to ultrasonic field
10/21/1999DE19817205A1 Method and apparatus for cleaning metal work pieces e.g. of magnesium or magnesium alloys
10/21/1999DE19816708A1 Method for reconditioning of inorganic acids contaminated with metals
10/19/1999US5968229 Purification of metal containing solutions
10/14/1999WO1999051796A1 Method for removing photoresist and plasma etch residues
10/13/1999EP0949354A1 Pickling process
10/13/1999EP0922124A4 Removal of fluoride-containing scales using aluminum salt solution
10/13/1999CN1231350A Electro-acoustic quick oil, scale and rust removing clean agent for metal and clean method thereof
10/06/1999EP0791083B1 Metal cleaning and de-icing compositions
10/05/1999CA2182675C Limescale removing compositions
09/1999
09/30/1999WO1999049104A1 Method for cleaning aluminium surfaces
09/30/1999DE19812622A1 Verfahren zur Reinigung von Aluminiumoberflächen A process for cleaning aluminum surfaces
09/30/1999DE19812005A1 Pulsed stream is used in the electrodialytic regeneration of process solutions in galvanic and other deposition processes
09/29/1999EP0945527A1 Aqueous liquid deoxidizing compositions methods of preparing them and processes for deoxidizing-etching aluminum therewith
09/28/1999US5958854 Silver polish formulation containing thiourea
09/28/1999US5958257 Treating brass component with aqueous sodium hydroxide or potassium hydroxide to remove some of leachable lead; rinsing and treating with water soluble carboxylic acid to remove substantially all of remaining leachable lead
09/28/1999US5958147 Placing metal in aqueous solution containing nitric acid, supplying hydrogen peroxide to decrease formation of nitrous fumes
09/28/1999CA2131001C Stabilization of silicate solutions
09/23/1999WO1999047729A1 Surface-treated article of magnesium or magnesium alloys, method of surface preparation and method of coating
09/23/1999WO1999047630A1 Low-foaming composition and method for degreasing metal surfaces
09/23/1999WO1999031212A9 Composition for cleaning hard surfaces
09/22/1999CN1229149A Treating method for oxide layer on aluminium far-infrared reflector
09/16/1999WO1999046425A1 Agent for cleaning metal and metal-containing surfaces
09/16/1999WO1999046353A1 Methods and apparatus for cleaning semiconductor substrates after polishing of copper film
09/16/1999CA2309583A1 Methods and apparatus for cleaning semiconductor substrates after polishing of copper film
09/15/1999CN1228838A Corrosion monitoring process
09/08/1999EP0760847A4 Aluminum desmut composition and process
09/07/1999CA2048427C Cooling system alkaline cleaning solution comprising polyhydroxy mono or di-carboxylic sugar acids
09/01/1999EP0938447A1 Composition and method for reducing copper oxide to metallic copper
08/1999
08/26/1999WO1999043070A1 Method for purifying the cooling circuit of an alternator stator operating in ventilated circuit, and implementing device
08/26/1999WO1999029928A3 Process and apparatus for steel band spray pickling
08/26/1999DE19802169A1 Cleaning process for biological and oxidation deposit removal from e.g. water pipes, heat exchangers, cooling water circuits, vessels and fittings
08/26/1999CA2320930A1 Method for purifying the cooling circuit of an alternator stator operating in ventilated circuit, and implementing device
08/24/1999CA2059488C Method for cleaning or extracting hydrocarbon based substances
08/18/1999EP0812241A4 Noncaustic cleaning composition comprising peroxygen compound and specific silicate and methods of making and using same
08/18/1999EP0725844B1 A process for activating a metal surface for conversion coating
08/18/1999EP0724655B1 Purification method
08/18/1999EP0690868B1 Alkyl glucoside and use thereof
08/17/1999US5939041 Spraying water into the gaseous stream to produce a mist of fine droplets and thereafter passing the gaseous stream through a liquid separator
08/17/1999US5938855 Method for cleaning a turbine component
08/11/1999CN1225692A Removal of fluoride-contg. scales using aluminum salt solution
08/10/1999US5935919 Dipping object in solution comprising alkai silicate and alkylene oxide nonionic surfactant, stirring, vibrating
08/05/1999WO1999039045A1 Aqueous compositions comprising complexing agents and uses therof
08/05/1999CA2335037A1 Aqueous compositions comprising complexing agents and uses thereof
08/03/1999US5932020 Containing dihydrogen phosphate salt and sulfur containing surfactant
08/03/1999US5932019 Applying calcium sulfate to remove deposit on tools
08/03/1999US5931174 Apparatus and method for cleaning articles
07/1999
07/28/1999EP0782610A4 Aqueous metal cleaner
07/28/1999EP0782609A4 Aqueous lubricant and surface conditioner for formed metal surfaces
07/28/1999EP0690905B1 Alkyl glycoside, its use for cleaning purposes, and cleaning composition
07/23/1999CA2256300A1 De-oiling process using enzymes
07/21/1999CN1044265C Cleaning agent comprising plural components and cleaning method using the same
07/21/1999CN1044264C Baths and method for chemically polishing stainless steel surfaces
07/21/1999CN1044221C Method for reclaiming metal sulfate-containing waste sulfuric acid
07/20/1999US5925613 Degreasing solution with alkali silicate and nonionic surfactant
07/20/1999US5925224 Method of and apparatus for purifying a solvent
07/20/1999CA2153314C Machine dishwashing detergent compositions
07/15/1999WO1999035505A2 Method for removing accumulated solder from probe card probing features
07/15/1999WO1999034940A1 Improvement in aqueous stripping and cleaning compositions
07/15/1999CA2317393A1 Improvement in aqueous stripping and cleaning compositions
07/08/1999DE19855895A1 Immersion cleaning e.g. of silicon wafer using hydrochloric acid and hydrogen peroxide mixture
07/07/1999CN2327697Y Conic floating ball with wings
07/01/1999WO1999032690A1 Pickling process with at least two steps
07/01/1999DE19758072A1 Etching objects made of copper and a less noble metal, especially brass
06/1999
06/29/1999US5916379 Treatment of ferrous metal surfaces
06/24/1999WO1999031296A1 Method for pickling and passivating special steel
06/24/1999WO1999031212A1 Composition for cleaning hard surfaces
06/24/1999WO1999021220A9 Methods and apparatus for cleaning semiconductor substrates after polishing of copper film
06/23/1999CN1220321A Method for making Durimet with good surface properties
06/22/1999US5913354 Removal of ceramic shell mold material from castings
06/17/1999WO1999030355A1 Wet processing methods for the manufacture of electronic components
06/17/1999WO1999029928A2 Process and apparatus for steel band spray pickling
06/17/1999DE19755350A1 Verfahren zum Beizen und Passivieren von Edelstahl A method of pickling and passivation of stainless steel
06/16/1999EP0922787A1 Process for pickling stainless steel
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