Patents
Patents for C25C 5 - Electrolytic production, recovery or refining of metal powders or porous metal masses (865)
02/1998
02/05/1998CA2262105A1 Process for preparing solvent-stabilized metal colloids and substrate-immobilized metal clusters
11/1997
11/26/1997CN1166186A Proces sof rmaking copper metal powder, copper oxides and copper foil
11/05/1997EP0571467B1 Mineral recovery apparatus
10/1997
10/23/1997WO1997038771A1 Process for making shaped copper articles
09/1997
09/23/1997US5670033 Process for making copper metal powder, copper oxides and copper foil
09/17/1997EP0795046A1 Process for making copper metal powder, copper oxides and copper foil
04/1997
04/24/1997WO1997014825A1 Process for making copper metal powder, copper oxides and copper foil
04/15/1997US5620584 Electrochemical reduction of metal salts as a method of preparing highly dispersed metal colloids and substrate fixed metal clusters by electrochemical reduction of metal salts
04/03/1997WO1997012078A1 Electrochemical system
04/03/1997CA2232970A1 Electrochemical system
01/1997
01/15/1997EP0739430A4 Process for making copper wire
12/1996
12/11/1996CN1137809A Process for making copper wire
11/1996
11/26/1996US5578183 Production of zinc pellets
11/14/1996WO1996035830A1 Production of zinc fuel pellets
10/1996
10/30/1996EP0739430A1 Process for making copper wire
10/30/1996CN1033173C Tech. for preparing alloy ultro-micro partical by heat treatment precipitation electrochemistry extraction
08/1996
08/27/1996US5549811 Process for decontamination soils polluted with metals
06/1996
06/25/1996US5529672 Mineral recovery apparatus
06/13/1996DE4443392A1 Electrochemical redn. of metal salts to form colloids for optical and electronic use, etc.
05/1996
05/28/1996US5520792 Process for making copper metal powder, copper oxides and copper foil
05/14/1996US5516408 Below the melting point, leaching, solvent extraction, electrodeposition
05/09/1996WO1996013624A1 Process for making copper wire
04/1996
04/24/1996CN1121360A Process for making copper metal powder, copper oxides and copper foil
03/1996
03/14/1996WO1996007774A1 Preparation of lead-zirconium-titanium film and powder by electrodeposition
03/05/1996US5496462 Process for obtaining a fine powder of dendritic cadmium
02/1996
02/07/1996EP0695377A1 Process for making copper metal powder, copper oxides and copper foil
12/1995
12/14/1995WO1995033871A1 Device for the production of ultrafine powders
11/1995
11/21/1995EP0695377A4 Process for making copper metal powder, copper oxides and copper foil
10/1995
10/31/1995US5462647 Electrolysis of soluble salts of lead, zirconium and titanium in electrolyte bath
10/17/1995US5458746 Leaching
09/1995
09/27/1995CN1109109A Process for the electrochemical dissolution of sulfur-containing and/or concentrated minerals by ion-exchange membranes and potential differences
09/21/1995DE4408958A1 Electron conductive particles contg. reactive heavy metal
09/21/1995DE4408512A1 Electrochemical redn. of metal salts to form colloids for optical and electronic use, etc.
09/20/1995EP0672765A1 Electrochemical reduction of metal salts as a method of preparing highly dispersed metal colloids and substrate fixed metal clusters by electrochemical reduction of metal salts
07/1995
07/27/1995WO1995020063A1 Preparation of superconductor precursor powders
07/05/1995EP0661766A1 Zinc powder and battery anodes containing the same
05/1995
05/30/1995US5419987 High performance zinc powder and battery anodes containing the same
05/24/1995EP0654547A1 Electrochemical refining of metals
05/23/1995CA2136052A1 Process for the electrochemical dissolution of sulfur-containing and/or concentrated minerals by ion-exchange membranes and potential differences
05/09/1995US5413987 Preparation of superconductor precursor powders
04/1995
04/15/1995CA2104064A1 Removal of metal of graphite
03/1995
03/15/1995EP0642394A1 Process for decontamination of metal-polluted earth
03/08/1995CN1099808A Tech. for preparing alloy ultro-micro partical by heat treatment precipitation electrochemistry extraction
12/1994
12/06/1994US5370784 Electrolytic process for the production of fine-grained, single-phase metallic alloy powders
10/1994
10/27/1994WO1994024334A1 Process for making copper metal powder, copper oxides and copper foil
06/1994
06/01/1994CN1087387A Method and apparatus for mineral recovery
02/1994
02/23/1994CN1082616A Technology of electric deposition of copper powder and extracting cupric oxide ore by carbon amino method
02/03/1994WO1994002663A1 Method and apparatus for mineral recovery
12/1993
12/29/1993EP0575709A1 Method for electrolytic production of finely divided, single phase alloy powders
12/15/1993EP0571467A4 Mineral recovery apparatus
12/15/1993CN1023134C Molten salt electrolytic process for producing Ti-Al alloy powder
12/09/1993WO1993024250A1 Method for decontaminating soils polluted by metals
12/09/1993WO1993024249A1 Process for decontamination of metal-polluted earth
12/09/1993CA2136847A1 Process for the decontamination of lands polluted by metals
12/09/1993CA2113826A1 Method for decontaminating soils polluted by metals
12/01/1993EP0571467A1 Mineral recovery apparatus
11/1993
11/11/1993DE4214415A1 Extracting metal and metal cpds. from combustion engine residue by chelation - using chelating agent soln. in electrolyte and synergistic effect obtd. by motion in relation to electric field
11/04/1993DE4227179C1 Platinum@ electrolysis recovery - has cation exchange membrane separating anode and cathode zones to give metal powder without producing chlorine@ gas
09/1993
09/08/1993EP0559246A2 Coated porous metal panel
04/1993
04/06/1993US5200054 Dissolving metal salt; forming ice coating on cathode which has internal refrigerant conduit; depositing metal on cathode; recovering metal by melting and refreezing
03/1993
03/23/1993US5195243 Method of making a coated porous metal panel
03/10/1993CN1069780A Process for seperating copper, zinc, lead, iron and tin from brass
02/1993
02/24/1993CN1069297A Zn powder production method
01/1993
01/05/1993US5176810 Reduction by molten salt electrolysis, heat treatment
12/1992
12/16/1992CN1019459B Fabrication method of superifine colummar metallic powder
09/1992
09/03/1992WO1992014865A1 Mineral recovery apparatus
08/1992
08/26/1992CN1063909A Molten salt electrolysis for producing ti-al alloy powder
08/18/1992CA1306440C Rotary electroplating of spaced conductive areas
08/05/1992EP0497675A1 Process for manufacturing a fine dendritic cadmium powder and powder obtained by this process
08/04/1992US5135567 Reducing with hydrogen; heat treatment
07/1992
07/29/1992CA2060111A1 Process for obtaining a fine powder of dendritic cadmium and powder obtained from this process
05/1992
05/12/1992CA1300554C Method for selectively recovering lead from complex sulphidic non-ferrous metal concentrates
01/1992
01/08/1992EP0464380A2 Method for producing metal powders
12/1991
12/18/1991EP0461510A2 Method for producing metal powders
08/1991
08/21/1991CN1053932A Technology for making foam metal
08/20/1991CA1287814C Process to prepare transition metal powders by electrolysis in molten salts baths
07/1991
07/16/1991CA1286251C Electrowinning cell
06/1991
06/05/1991EP0429748A1 Electrode for the recovery of metals from a solution containing metal-ions
03/1991
03/05/1991US4997532 Process for extracting noble metals
01/1991
01/23/1991EP0409420A1 Hybrid chromium recovery
01/20/1991CA2017196A1 Hybrid chromium recovery process
08/1990
08/14/1990US4948476 Using electrolytic oxidation cell and coupled transport module
06/1990
06/30/1990CA2006893A1 Process for extracting noble metals
05/1990
05/23/1990EP0253841B1 Process for producing transition metal powders by electrolysis in baths of molten salts
12/1989
12/13/1989EP0172847B1 Metal recovery process
10/1989
10/25/1989CN2046504U Electrolyzer for producing metal powder
09/1989
09/26/1989CA1261297A1 Electrolytic recovery process and system for obtaining titanium metal from its ore
09/20/1989CN1035629A Fabrication method of superfine colummar metallic powder
02/1989
02/08/1989CN1030950A Production of active lead powder with cinder in waste battery
12/1988
12/01/1988DE3716118A1 Process for incorporating whiskers in metal powders or in granular metallic material and the further processing of the latter to produce mouldings
09/1988
09/27/1988US4773978 Apparatus for the production of metals by electrolysis
09/13/1988US4770750 Process for producing transition metal powders by electrolysis in melted salt baths
06/1988
06/16/1988DE3641754A1 Process for preparing aluminium nitride powder
04/1988
04/19/1988US4738762 Electrowinning system
03/1988
03/29/1988US4734172 Method for selectively recovering lead from complex sulphidic non-ferrous metal concentrates
03/15/1988CA1234070A1 Electrowinning metal in diaphragm cell with smooth cathode
02/1988
02/09/1988US4724051 Impure zinc powder, preparation thereof, and use as a selective reductant for pentachloropyridine
01/1988
01/27/1988EP0253841A1 Process for producing transition metal powders by electrolysis in baths of molten salts.
01/12/1988US4718996 Recovery of tungsten, scandium, iron, and manganese values from tungsten bearing material
12/1987
12/29/1987US4715934 Process and apparatus for separating metals from solutions
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