| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 03/05/1997 | CN1144541A Hydrometallurgical extraction process |
| 03/04/1997 | US5607619 Leaching gold, silver, platinum and palladium |
| 02/25/1997 | US5605633 Process for treating photographic waste water |
| 02/20/1997 | WO1997006283A1 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 02/20/1997 | WO1997006282A1 Electrochemical processing method for catalyst substrates containing noble metals for the recovery thereof |
| 02/20/1997 | CA2229058A1 Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof |
| 02/19/1997 | EP0758411A1 Mist suppressant for solvent extraction metal electrowinning |
| 02/13/1997 | WO1996041029A3 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 02/05/1997 | CN1141966A Electrolytic metallurgy of lead |
| 02/05/1997 | CN1141956A Method for production of zinc from material containing zinc |
| 01/22/1997 | EP0754781A1 A process and apparatus for desilvering a silver-containing solution |
| 01/22/1997 | EP0754780A1 Process for de-silvering a silver-containing solution |
| 01/21/1997 | US5595645 Electrolytic oxidation process |
| 01/21/1997 | US5595642 Pressure leaching of nickel and cobalt sulphides with chlorine under controlled redox potential conditions |
| 01/16/1997 | WO1996027193A3 Method for removal of technetium from radio-contaminated metal |
| 01/15/1997 | EP0739430A4 Process for making copper wire |
| 01/15/1997 | CN1140209A Method for wet metallurgy of bismuth sulfide ore |
| 01/08/1997 | EP0752013A1 Hydrometallurgical extraction process |
| 01/08/1997 | CN1139704A Method for extracting copper from ore |
| 01/08/1997 | CN1033761C Hydrometallurgical method of producing metallic lead from materials containing lead oxide and/or metallic lead |
| 12/19/1996 | WO1996041039A1 Redox control in the electrodeposition of metals |
| 12/19/1996 | WO1996041029A2 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 12/19/1996 | WO1996041027A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/19/1996 | WO1996041026A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/19/1996 | CA2456772A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/17/1996 | US5584981 Electrochemical deionization |
| 12/12/1996 | WO1996039550A1 Method for recovering copper |
| 12/12/1996 | CA2222418A1 Method for recovering copper |
| 12/11/1996 | CN1137809A Process for making copper wire |
| 12/05/1996 | WO1996038602A1 Mineral recovery apparatus |
| 12/05/1996 | CA2222944A1 Mineral recovery apparatus |
| 11/28/1996 | DE19521596C1 Recovery of zinc@ from copper@-contg sulphuric or phosphoric acid pickling solutions |
| 11/27/1996 | CN2241151Y Small electronic silver extractor |
| 11/26/1996 | US5578191 Process for extracting tin from organic solutions by electrolysis |
| 11/26/1996 | US5578183 Production of zinc pellets |
| 11/20/1996 | EP0743378A1 Electrowinning of lead |
| 11/16/1996 | CA2170180A1 Electrowinning of lead |
| 11/14/1996 | WO1996035830A1 Production of zinc fuel pellets |
| 11/12/1996 | US5573739 Selective bismuth and antimony removal from copper electrolyte |
| 11/06/1996 | CN1134989A Method of recovering antimony and bismuth from copper electrolyte |
| 10/30/1996 | EP0739430A1 Process for making copper wire |
| 10/30/1996 | CN1134472A Process for production of pure solutions of tungsten and molybdenum |
| 10/29/1996 | US5569370 Reactions are carried out in separate anode and cathode tanks with the liquid product from the anode tank being separated and purified before return to the cathode tank for metal deposition |
| 10/23/1996 | EP0738917A1 Method for the electro-oxidation of photographic solutions |
| 10/15/1996 | US5565083 Periodically moving scraper comprising plate attached to actuating means and having removable blade along electrode surface to remove deposits |
| 09/26/1996 | WO1996029439A1 Atmospheric mineral leaching process |
| 09/19/1996 | DE19609439A1 Prodn. of pure cobalt@ for sputtering targets for electronics use |
| 09/10/1996 | US5554270 Electrolytic desilvering method |
| 09/06/1996 | WO1996027193A2 Method for removal of technetium from radio-contaminated metal |
| 09/05/1996 | DE19607745A1 Quick, clean, simple processing of tungsten@ esp. thoriated tungsten scrap |
| 09/04/1996 | CN1032704C Method of electrolysis extracting copper from material containing cupric sulfide |
| 09/04/1996 | CN1032703C Method for removal of copper from electrotytic nickel anode liquid |
| 08/28/1996 | CN1032657C Controlling pollution method for wet process of smelting Mn or Zn by increasing or decreasing pressure |
| 08/20/1996 | CA1338533C Metal recovery method and apparatus |
| 08/06/1996 | US5543031 Method for recovering indium by electrowinning and apparatus therefor |
| 07/31/1996 | EP0724306A1 Process for the hydrometallurgical and electrochemical treatment of the active mass of exhausted lead batteries, to obtain electrolytic lead and elemental sulphur |
| 07/26/1996 | CA2141099A1 Process for the hydrometallurgical and electrochemical treatment of the active mass of exhausted lead batteries, to obtain electrolytic lead and elemental sulphur |
| 07/16/1996 | US5536387 Silver removal |
| 07/10/1996 | EP0721017A1 Process for preparing pure solutions of tungsten and molybdenum |
| 07/09/1996 | US5534131 Process for heavy metals electrowinning |
| 07/04/1996 | WO1996020133A1 Method for demetallating refinery feedstreams |
| 07/04/1996 | CA2208565A1 Method for demetallating refinery feedstreams |
| 07/04/1996 | CA2166368A1 Process for the production of pure solutions of tungsten and molybdenum |
| 07/03/1996 | EP0719351A1 Process for the recovery of a heavy metal |
| 06/26/1996 | EP0717792A1 Cell for the recovery of metals from dilute solutions |
| 06/25/1996 | US5529684 Electrolytically demetallating petroleum stream with aqueous electrolysis medium |
| 06/25/1996 | US5529672 Mineral recovery apparatus |
| 05/28/1996 | US5520794 Recovering lead using anodes and cathodes in lead salt of alkanesulfonic acid |
| 05/28/1996 | US5520792 Process for making copper metal powder, copper oxides and copper foil |
| 05/17/1996 | WO1996014440A1 Process for decomposing and recovering the metal components from superalloys |
| 05/15/1996 | EP0602141B1 Electrolytic device and method having a porous stirring electrode |
| 05/15/1996 | DE4440071A1 Silver recovery and regeneration of fixing bath |
| 05/14/1996 | US5516408 Below the melting point, leaching, solvent extraction, electrodeposition |
| 05/09/1996 | WO1996013624A1 Process for making copper wire |
| 05/09/1996 | DE4439041A1 Verfahren zum Aufschluß und Rückgewinnung der metallischen Bestandteile aus Superlegierungen Method for the decomposition and recovery of metallic components from superalloys |
| 05/08/1996 | EP0504190B1 Method for recovering silver from a photographic fixing solution |
| 05/07/1996 | US5514263 Process for the recovery of metallic lead from battery paste |
| 05/02/1996 | DE4438692A1 Electrochemical pptn of copper@, zinc@, lead@, nickel@ or cobalt@ from oxidised ore leach solns |
| 05/01/1996 | CN1121541A Gold extracting method by recovery |
| 04/24/1996 | CN1121361A Process for making copper foil |
| 04/24/1996 | CN1121360A Process for making copper metal powder, copper oxides and copper foil |
| 04/10/1996 | CN2224211Y Multi-function electronic silver-extracting machine |
| 04/03/1996 | EP0704557A1 Improved process for heavy metals electrowinning |
| 03/20/1996 | EP0701636A1 Method and apparatus for the electrolytic production of copper wire |
| 03/13/1996 | EP0551478B1 Silver recovery device |
| 03/12/1996 | US5498322 Aluminum alloy cathode plate for electrowinning of zinc |
| 03/09/1996 | CA2156202A1 Process for heavy metals electrowinning |
| 03/06/1996 | EP0699955A1 Process for extracting tin from organic solutions by electrolysis |
| 03/05/1996 | US5496462 Process for obtaining a fine powder of dendritic cadmium |
| 03/05/1996 | US5496454 Method for the operation of electrolytic baths to produce Fe3 O4 electrophoretically in a three compartment cell |
| 02/29/1996 | DE19500057C1 Environmentally friendly prodn. of pure tungstate and molybdate soln. |
| 02/22/1996 | DE4429195A1 Electrolytic recovery of zinc@ |
| 02/20/1996 | US5492608 Electrolyte circulation manifold for copper electrowinning cells which use the ferrous/ferric anode reaction |
| 02/07/1996 | EP0695377A1 Process for making copper metal powder, copper oxides and copper foil |
| 01/30/1996 | US5487819 Production of metals from minerals |
| 01/23/1996 | US5486272 Electroplating method and apparatus |
| 01/17/1996 | CN1114985A Technology of production of refined tin from tin slag with direct electrolysis |
| 01/02/1996 | US5480769 Method and apparatus for controlling electrolytic silver recovery for two film processing machines |
| 12/26/1995 | US5478448 Process and apparatus for regenerating an aqueous solution containing metal ions and sulfuric acid |
| 12/19/1995 | CA2026967C Method of removing cobalt from chloride solution |