| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 04/06/1993 | US5200042 Process to recover pure copper during purification of zinc sulfate solution |
| 04/06/1993 | CA1315650C Chemical treatment of aluminum cathodes in zinc electrowinning |
| 03/30/1993 | US5198081 Adsorption of lithium on a working electrode, desorption and applying a voltage |
| 03/30/1993 | US5198079 Construction and way of operation of a gas diffusion electrode for the electrochemical discovery of materials from aqueous solutions |
| 03/23/1993 | CA1314837C Method for manufacturing zinc hydrometallurgically |
| 03/18/1993 | WO1993005203A1 Electrolytic device and method having a porous stirring electrode |
| 03/18/1993 | WO1993004985A1 System for treatment of photographic wastewater effluent and process therefor |
| 03/17/1993 | EP0531408A1 Electrochemical synthesis and simultaneous purification process |
| 03/16/1993 | US5194125 Process for the electroextraction of zinc |
| 03/12/1993 | CA2078059A1 System for treatment of photographic wastewater effluent and process therefor |
| 03/10/1993 | CN1069780A Process for seperating copper, zinc, lead, iron and tin from brass |
| 02/25/1993 | DE4127454A1 Photo-fixing bath regeneration - in which current at electrolysis cell is monitored to control volume of fresh fixing bath to be added |
| 02/24/1993 | CN1069297A Zn powder production method |
| 02/23/1993 | US5188713 Using ammonium nitrate, electrowinning; temperature control |
| 02/18/1993 | WO1993003203A1 Silver recovery device |
| 02/16/1993 | US5186811 Method of manufacturing printed wiring boards |
| 02/10/1993 | CN2126853Y Cyanide noble metal liquid carbon fibre electrode gold extraction slot |
| 02/09/1993 | US5185068 Electrolytic production of metals using consumable anodes |
| 02/04/1993 | DE4125771A1 Silberrueckgewinnungsvorrichtung Silberrueckgewinnungsvorrichtung |
| 02/02/1993 | US5183544 Apparatus for electrowinning of metal from a waste metal material |
| 02/02/1993 | US5183541 Decontamination of radioactive metals |
| 01/27/1993 | EP0524782A2 Treatment of copper sulfide concentrates |
| 01/26/1993 | US5181994 From ferrochrome; electrolysis |
| 01/20/1993 | CN1068153A Artificial diamond purifying apparatus using electrical power to remove catalyst metal |
| 01/20/1993 | CA2067472A1 Treatment of copper sulfide concentrates |
| 01/13/1993 | EP0522232A2 Electrode for metal removal from metal ion containing solutions |
| 01/13/1993 | CA2071737A1 Electrode for extracting metals from a metallic solution |
| 01/12/1993 | US5178771 Complexing, precipitation |
| 01/05/1993 | US5176802 Treatment of copper sulfide concentrates |
| 01/05/1993 | CA1312303C Process for stopping and restarting an electrolytic refining plant |
| 12/23/1992 | EP0518867A1 Fully automatic current control system for metal depletion cells |
| 12/08/1992 | US5169503 Solubilization using aqueous mixture of chloride, hypochlorite, and cyanuric acid |
| 12/01/1992 | CA1310837C Hydrometallurgic process for recovering in the metal form the lead contained in the paste of the exhausted batteries |
| 11/25/1992 | CN1066478A Pure iron foil preparation method by electrolytic formation |
| 11/17/1992 | CA1310294C Process for electrolytically producing metals of ni, co, zn, cu, mn, andcr from a solution thereof |
| 11/15/1992 | WO1992020838A1 Electrolytic desilvering process |
| 11/15/1992 | CA2109067A1 Electrolytic desilvering method |
| 11/11/1992 | CN1066089A Technology of manufacturing cathodic plate for electrolytic zinc by casting-forging method |
| 11/03/1992 | US5160417 Electrolytic process for treatment of photographic wastewater effluent |
| 10/20/1992 | US5156722 Solvent extraction and electrowinning or oxidative electrorefining of nuclear fuel ingots of nickel having technetium and actinide impurities |
| 10/20/1992 | US5156721 Passing electric current through electrolyte solution containing halogen and hydrogen ions to produce oxyhalide species and dissolving and depositing rhodium |
| 10/20/1992 | CA1309205C Manufacture of a soderberg electrode incorporating a high carbon-contributing phenolic sacrificial binder |
| 10/14/1992 | EP0508960A1 A hydrometallurgical method of producing metallic lead from materials containing oxides, particularly from the active material of accumulators |
| 10/13/1992 | CA1308688C Electrochemical process for the recovery of metallic rhodium from aqueous solutions of used catalysts |
| 09/30/1992 | EP0505750A2 Ceramic anode for oxygen evolution, method of production and use of the same |
| 09/23/1992 | EP0504190A1 Method for recovering silver from a photographic fixing solution. |
| 09/06/1992 | WO1992015713A1 Process for recovery of metal |
| 09/06/1992 | CA2105586A1 Process for recovery of metal |
| 09/03/1992 | WO1992014865A1 Mineral recovery apparatus |
| 09/02/1992 | EP0501512A1 Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexes |
| 09/02/1992 | CA2061390A1 Metal anodes for electrolytic acid solutions containing fluorides or fluoroanionic complexes |
| 08/26/1992 | EP0436602B1 Metal-recovery device |
| 08/18/1992 | CA1306440C Rotary electroplating of spaced conductive areas |
| 08/14/1992 | WO1992014866A1 Process for the recovery of metallic lead from battery paste |
| 08/14/1992 | CA2104398A1 Process for the recovery of metallic lead from battery paste |
| 08/12/1992 | EP0223837B1 Method and apparatus for purification of gold |
| 08/05/1992 | EP0497675A1 Process for manufacturing a fine dendritic cadmium powder and powder obtained by this process |
| 08/04/1992 | US5135624 Electrolytic hydrometallurgical silver refining |
| 07/29/1992 | CA2060111A1 Process for obtaining a fine powder of dendritic cadmium and powder obtained from this process |
| 07/28/1992 | US5133948 Adding finely divided lead oxide |
| 07/15/1992 | EP0494563A1 Process for electrowinning of zinc |
| 07/15/1992 | CN1017453B Method and equipment for electrolyzing metal mn and mn 02 in same electrolyzer |
| 07/14/1992 | CA1305119C Method of treating organic waste material and a catalyst/cocatalystcomposition useful therefor |
| 07/08/1992 | CA2058829A1 Zinc electroextraction process |
| 06/24/1992 | CN1017167B Direct electrolytic refining of copper scrap by stainless steel anode frame |
| 06/23/1992 | US5124011 Cyclic voltammetry |
| 06/09/1992 | US5120409 Anodic dissolving, electrolytic separation |
| 06/03/1992 | EP0488862A1 Prevention against acid mist in metal electrowinning |
| 06/03/1992 | EP0487881A1 Process and apparatus for the electrolytic recovery of metals from a solution containing metal-ions and electrode for carrying out said process |
| 06/02/1992 | US5118402 Electrolytic silver recovery system for recovering silver from photographic fixing solutions |
| 05/30/1992 | CA2056179A1 Use, process and apparatus for electrolytically recovering metals from a metal ion solution |
| 05/28/1992 | CA2056822A1 Acid fog control in metal electrowinning |
| 05/20/1992 | EP0486188A2 Process for regenerating ammoniacal chloride etchants |
| 05/20/1992 | EP0486187A2 Process for the electrolytic regeneration of ammoniacal copper etchant baths |
| 05/19/1992 | US5114547 Electrode |
| 05/17/1992 | CA2052930A1 Process for regenerating ammoniacal chloride etchants |
| 05/14/1992 | DE4035316A1 Recovery of nickel@ from wastes esp. those from nickel plating baths - in simple, effective method without prodn. of damaging chlorine@ gas by=product |
| 05/12/1992 | CA1300554C Method for selectively recovering lead from complex sulphidic non-ferrous metal concentrates |
| 04/22/1992 | CN1016366B Process for producing high purity sn from raw soldering tin |
| 04/21/1992 | US5106467 Alkaline leaching of galvanized steel scrap |
| 04/15/1992 | EP0479956A1 Silver recovery device. |
| 04/14/1992 | US5104494 Method of restoring solderability |
| 04/08/1992 | EP0479326A1 Alkaline leaching of galvanized steel scrap |
| 04/07/1992 | US5102512 Extraction using absorbent resin, reduction, electrolysis |
| 03/31/1992 | US5100528 A tank with a cathode, an anode and a diaphragm |
| 03/31/1992 | US5100522 Electrodeposition on endless metal belt |
| 03/25/1992 | EP0476862A1 Electrogeneration of bromine and use thereof in recovery of precious metals and water treatment |
| 03/25/1992 | CN1059746A Composite assembly of a mother plate with stuck sides and its manufacturing method also applications |
| 03/17/1992 | US5096548 dissolving ferrochrome in sulfuric acid, crystallization, filtration, precipitation of chromium hydroxide, electrolysis |
| 02/26/1992 | CN1058996A Direct electrolyzation obtaining gold with steel wool used in cyanide liquid |
| 02/18/1992 | US5089097 Hydrogen reduction of silver yields controlled particle size precipitates; using controlled current density, concentration |
| 02/12/1992 | CN1058623A Installation for removing zinc deposited by electrolysis of aluminium plates |
| 02/12/1992 | CN1015437B Method for extracting and purifying gallium from bayer-liquid |
| 02/05/1992 | EP0470033A2 Installation for removing the zinc deposited by electrolysis on aluminium plates |
| 02/05/1992 | CN1015383B Lead, silver, calcium rare earth multiple-insolubility alloy anode used in electrolysis and its manufacturing thereof |
| 02/04/1992 | US5085730 Process for regenerating ammoniacal chloride etchants |
| 01/09/1992 | WO1991019020A3 Electrochemical synthesis and simultaneous purification process |
| 01/08/1992 | EP0465401A1 Apparatus for recovering silver or other precious metals dissolved in a liquid |
| 01/02/1992 | EP0463671A1 Process for treating waste pickling baths containing metallic salts and acids |
| 01/02/1992 | DE4020560A1 Working-up of seat pickling liquor contg. metal salts and acids - preventing pollution with only small expenditure on energy and materials |