| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 04/21/1999 | EP0909336A1 Process for recovery of zinc from sphalerite containing ores or concentrates |
| 04/20/1999 | CA2052849C Alkaline leaching of galvanized steel scrap |
| 04/20/1999 | CA2043349C A method for measuring impurity concentration and removing impurities from electrolytic solution for electrowinning of size. |
| 04/13/1999 | US5894077 Electrolysing alkaline solution using porous liquid-permeable high surface area electrode as cathode |
| 04/07/1999 | CN1213007A Method and system for extracting noble metal adsorbed on active carbon |
| 03/31/1999 | CN1212732A Process for recovery of zinc from sphalerite containing ores or concentrates |
| 03/31/1999 | CN1042752C Method for electroextraction of bismuth from bismuth sulfide ore pulp |
| 03/25/1999 | WO1999014403A1 Process for making manganese |
| 03/18/1999 | WO1998058090A3 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 03/17/1999 | CA2246881A1 Anode for oxygen evolution in electrolytes containing manganese and fluorides |
| 03/16/1999 | US5882502 Electrochemical apparatus and system for extracting and recovering metals from their compounds |
| 03/16/1999 | CA2186939C Silver electrolysis method in moebius cells |
| 03/16/1999 | CA2137124C Pressure leaching of nickel and cobalt sulphides with chlorine under controlled redox potential conditions |
| 03/10/1999 | EP0815289A4 Process for electrowinning of copper matte |
| 03/10/1999 | EP0682806B1 Process for the treatment of particulate material |
| 03/10/1999 | CN1042447C Cathode for electrolytic deposition of non-ferrous metals |
| 03/03/1999 | CN1209469A Electrolytic anode plate |
| 03/02/1999 | US5876588 Process for removing and recovering copper, silver and zinc from sulfide ores |
| 02/27/1999 | CA2245018A1 Production of electrolytic copper from dilute solutions contaminated by other metals |
| 02/23/1999 | US5874055 Oxidizing ore under pressure in presence of acidic solution containing halide and sulfate ions to produce slurry,filtering, solvent extracting filtrate to produce copper concentrate, recycling depleted raffinate |
| 02/18/1999 | DE19749445C1 Electrolysis cell for removal of metals from electrolyte solutions |
| 02/11/1999 | DE19734083A1 Arrangement for joining two development machines to an electrolysis unit with an open electrolysis cell |
| 02/09/1999 | US5869012 Chloride assisted hydrometallurgical extraction of metal |
| 02/02/1999 | CA2143254C Method for the removal of thallium |
| 01/27/1999 | EP0871800A4 Method for recovering copper |
| 01/27/1999 | CN1041850C Electrode, its manufacture and use |
| 01/20/1999 | CN1041757C Zn powder prodn. method from material containing Zn by immersion electrolysis process |
| 01/14/1999 | WO1999001591A1 Method for separating technetium from a nitric solution |
| 01/13/1999 | EP0833964A4 Process for making wire |
| 01/13/1999 | EP0789784B1 Process for decomposing and recovering the metal components from superalloys |
| 01/05/1999 | US5855858 Process for the recovery of nickel and/or cobalt from an ore or concentrate |
| 01/05/1999 | US5855756 Methods and apparatus for enhancing electrorefining intensity and efficiency |
| 12/30/1998 | WO1998059081A1 Separating metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolysis vessel |
| 12/30/1998 | EP0795046A4 Process for making copper metal powder, copper oxides and copper foil |
| 12/23/1998 | WO1998058101A1 Anode for electrolytic refining |
| 12/23/1998 | WO1998058090A2 A method and a device for recovering metals comprising dissolving, concentrating and electrowinning means with rotatable cathode |
| 12/23/1998 | WO1998058089A1 Method for smelting noble metal |
| 12/23/1998 | EP0885976A1 Electrowinning of high purity zinc metal from a Mn-containing leach solution preceded by cold electrolytic demanganization |
| 12/23/1998 | CN2301453Y Silver recovery and liquid reagent regenerating machine |
| 12/10/1998 | DE19723793A1 De-tinning of flat copper material for tin and copper recovery |
| 12/09/1998 | EP0882816A1 Electrolytic cell for removing silver from silver-containing aqueous liquids |
| 12/09/1998 | EP0854941A4 Electrochemical system |
| 12/09/1998 | CN2299876Y Magnetic refining apparatus |
| 12/02/1998 | EP0717792B1 Cell for the recovery of metals from dilute solutions |
| 11/25/1998 | EP0847454A4 Intense yet energy-efficient process for electrowinning of zinc in mobile particle beds |
| 11/17/1998 | US5837123 Prevention of cathode corrosion during electrowinning |
| 11/17/1998 | CA2098559C Reducing agent regeneration system |
| 11/10/1998 | US5833830 Electrowinning a metal from an electrolyte |
| 10/28/1998 | CN1197120A Method of producing electrolytic copper from germ soaking of sulfide mineral |
| 10/22/1998 | DE19715981A1 Recovery of platinum-metal compounds from catalysts with carriers |
| 10/21/1998 | EP0871800A1 Method for recovering copper |
| 10/21/1998 | EP0871787A1 Electrochemical processing method for catalyst substrates containing noble metals for the recovery thereof |
| 10/21/1998 | CN2294965Y Portable open-mouth gold-silver direct extracting machine |
| 10/13/1998 | US5820653 Process for making shaped copper articles |
| 10/13/1998 | CA2121292C Cathode for the electrolytic deposition of non-ferrous metals |
| 10/01/1998 | WO1998042894A1 Electrolytic method for recovering and recycling silver from a nitric solution |
| 09/30/1998 | EP0867409A1 Process for the recovery of metals from electrolytic surface treatment sludge |
| 09/29/1998 | CA2081292C Process for the electrochemical recovery of bismuth from an ion exchange eluent |
| 09/22/1998 | US5810983 High purity cobalt sputtering targets |
| 09/16/1998 | CN1193359A Process for making wire |
| 09/16/1998 | CN1193053A Polyacrylic acid additive for copper electrolytic purification and copper electrolytic metallurgy |
| 09/15/1998 | US5807421 Hydrometallurgical extraction process |
| 09/08/1998 | US5804044 Electrolysis device and method using a porous electrode |
| 09/02/1998 | CN1192165A Process for making shaped copper articles |
| 08/26/1998 | CN1191579A Mineral recovery apparatus |
| 08/19/1998 | CN1039545C Frame type fixed bed electrode electrolyzer and its industrial application |
| 08/18/1998 | CA2229223A1 An electrolytic magnesium production process using mixed chloride-fluoride electrolytes |
| 08/12/1998 | EP0845054A4 Mineral recovery apparatus |
| 08/11/1998 | US5792328 Apparatus for removing zinc particle deposits from an electrode |
| 08/05/1998 | EP0856597A1 Process for monitoring the electrolyte circulation in an electrolysis cell |
| 08/05/1998 | EP0835334A4 Production of zinc fuel pellets |
| 08/05/1998 | CN1189541A Method of extracting copper, iron gold, silver and sulphur from auricupride |
| 07/29/1998 | EP0854941A1 Electrochemical system |
| 07/29/1998 | CN1039355C Installation for removing zinc deposited by electrolysis of aluminium plates |
| 07/21/1998 | US5783062 Process for the treatment, by an electrochemical route, of compositions containing precious metals with a view to their recovery |
| 07/21/1998 | US5783060 Controlling electrolytic recovery of metals |
| 07/21/1998 | US5783057 Adding sodium hydrogen sulfide to precipitate metals including copper, arsenic, antimony, and bismuth as sulfides |
| 07/14/1998 | US5779877 Recycling of CIS photovoltaic waste |
| 07/08/1998 | CN1187220A Chloride assisted hydrometallurgical extraction of metal |
| 07/08/1998 | CN1186875A Method and device for on-line control of organic additive in electrolytic deposition process of metal |
| 07/07/1998 | US5776329 Method for the decomposition and recovery of metallic constituents from superalloys |
| 07/01/1998 | CN1186524A Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| 07/01/1998 | CN1186523A Chloride assisted hydrometallurgical extraction of metal |
| 06/30/1998 | CA2020691C Electrode embossed with central vertical circulation channel and upwardly directed channels |
| 06/25/1998 | DE19653273A1 Recovery of at least one of the metals precipitated onto a substrate |
| 06/23/1998 | US5770034 Process and apparatus for desilvering a silver-containing solution |
| 06/18/1998 | CA2193305A1 Process for removing and recovering copper, silver and zinc from sulfide ores |
| 06/17/1998 | EP0847454A1 Intense yet energy-efficient process for electrowinning of zinc in mobile particle beds |
| 06/09/1998 | US5762683 Ferric fluoborate/organic extractant hydrometallurgical process for recovering metals |
| 06/03/1998 | EP0845054A1 Mineral recovery apparatus |
| 06/02/1998 | US5759377 Process for de-silvering of a silver-containing solution |
| 06/02/1998 | CA2022231C Process for producing electrolytic lead and elemental sulfur from galena |
| 05/28/1998 | WO1998022641A1 Efficient electrowinning of zinc from alkaline electrolytes |
| 05/28/1998 | CA2270428A1 Efficient electrowinning of zinc from alkaline electrolytes |
| 05/27/1998 | EP0843741A1 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 05/19/1998 | US5753099 Anode, cathode and carrier sheet of flexible electrically insulating material from which metal will be easily smelted |
| 05/14/1998 | DE19748905A1 Treatment of alkaline effluent from nuclear fuel reprocessing |
| 05/13/1998 | CN1038348C Prodn. of metal from minerals |
| 05/12/1998 | US5750019 Process for hydrometallurgic and electrochemical treatment of sulfur antimony ores with production of electrolytic antimony and elemental sulfur |
| 04/22/1998 | EP0836523A1 Process for making shaped copper articles |