| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 07/03/1985 | EP0146732A1 Process and apparatus for separating, for example, copper from a liquid electrolyte introduced into a pluricellular electrolyser |
| 06/25/1985 | CA1189291A1 Method of recovering hydrogen-reduced metals, ions and the like at porous catalytic barriers and apparatus therefor |
| 05/14/1985 | CA1187036A2 Chromate removal from concentrated chlorate solution by chemical precipitation |
| 05/07/1985 | US4515696 Separation of residue after neutralization before precipitation |
| 04/30/1985 | CA1186274A1 Deposition of copper with spacing bodies between cathode and anode of cell |
| 04/24/1985 | EP0138801A1 Process for the electrolytic refining of silver |
| 04/24/1985 | EP0137776A1 Method of maintaining and testing for proper concentrations of thiourea in copper refining electrolysis cells. |
| 04/16/1985 | US4511443 Method of thiourea addition to electrolytic solutions useful for copper refining |
| 04/10/1985 | EP0136786A1 Purifying mixed-cation electrolyte |
| 04/09/1985 | US4510095 Production of organotin halides |
| 04/09/1985 | US4510027 Addition of complexing agent |
| 03/28/1985 | WO1985001303A1 Electrode for electrometallurgical processes |
| 03/26/1985 | US4507182 Metal chloride electrolytes, reduction |
| 03/19/1985 | US4505744 Recovery of zinc from zinc containing sulphidic material |
| 03/12/1985 | CA1183690A1 Chloride leaching of nickel-cobalt-iron sulphides |
| 03/05/1985 | US4503015 Method of removing arsenic from a copper electrolyte |
| 03/05/1985 | CA1183488A1 Process for the electrodeposition of ferro-nickel alloys |
| 02/26/1985 | US4501666 Contacting with a phosphomethylaminochelate resin |
| 02/19/1985 | US4500398 Production of lead from sulfides |
| 02/19/1985 | US4500396 Copper recovery process |
| 02/12/1985 | US4498522 Electrolytic refining of metal |
| 01/16/1985 | EP0131470A2 Zinc electrolyte treatment |
| 01/16/1985 | EP0043821B1 Apparatus for recovering metals from solution |
| 01/15/1985 | CA1180903A1 Separation of cobalt and nickel |
| 01/09/1985 | EP0130250A1 Electrolysis using two electrolytically conducting phases |
| 01/08/1985 | CA1180681A1 Guide baffles upstream of electrode channels to provide uniform flow |
| 01/02/1985 | CA1180195A Method and apparatus for removing metals from metal- salt solutions |
| 12/27/1984 | CA1179966A Leaching of zinc containing sulphide minerals |
| 12/27/1984 | CA1179965A Electrowinning metal by introducing electrolyte and carbonaceous solid into cell |
| 12/25/1984 | US4490224 Electrodeposition using cell with cationic permeable membrane |
| 12/25/1984 | US4490223 Electrode for electrometallurgical processes |
| 12/18/1984 | US4488950 Heavy metal separation from copper-bearing wastes |
| 12/18/1984 | CA1179478A1 Reducing titanium dioxide to produce electrode material and an electrode of such material |
| 12/05/1984 | EP0127492A1 Treatment process of a purge solution, particularly used in the electrolytical winning of zinc |
| 11/27/1984 | US4484990 Mist suppressant for solvent extraction metal electrowinning |
| 11/23/1984 | EP0115500A4 Recovery of silver and gold from ores and concentrates. |
| 10/23/1984 | US4478698 Roasting; solvent extraction; precipitation |
| 10/23/1984 | US4478697 Method for electrodepositing metallic manganese |
| 10/23/1984 | US4478696 Ionizable reducing and oxidizing gaseous supply means and process for catalytic barriers and electrodes |
| 10/23/1984 | CA1176472A1 Method of leaching of metal sulphide-containing material |
| 10/16/1984 | US4477323 Crystallization of ferrous sulfate hydrate from leaching liquor |
| 10/02/1984 | US4474655 Method for the detinning of painted tinplate waste |
| 10/02/1984 | US4474654 Method for removing arsenic from a sulphuric-acid solution |
| 10/02/1984 | US4474649 Method of thiourea addition of electrolytic solutions useful for copper refining |
| 10/02/1984 | US4474614 Crystallization |
| 09/19/1984 | EP0118633A1 Gold recovery process and apparatus |
| 09/11/1984 | US4470892 Planar carbon fiber electrode structure |
| 09/11/1984 | CA1174200A1 Method and apparatus for controlling the quality of zinc sulfate electrolyte |
| 09/11/1984 | CA1174199A1 Bipolar refining of lead |
| 09/11/1984 | CA1174198A1 Electrolyte for bipolar lead refining |
| 08/30/1984 | WO1984003307A1 Method of maintaining and testing for proper concentrations of thiourea in copper refining electrolysis cells |
| 08/28/1984 | US4468303 Metal recovery |
| 08/28/1984 | US4468302 Leaching, electrolysis |
| 08/21/1984 | CA1172990A1 Process and device for coating small-sized elements with a metal deposit |
| 08/15/1984 | EP0115500A1 Recovery of silver and gold from ores and concentrates |
| 07/31/1984 | US4462879 Gold recovery process |
| 07/25/1984 | EP0113912A2 Selective extraction of rhenium from aqueous sulfuric acid solutions |
| 07/24/1984 | US4461683 Method for separating iodine in solid form, from an acid mercury salt solution |
| 07/24/1984 | CA1171286A1 Recovery of silver and gold from ores and concentrates |
| 07/18/1984 | EP0113580A2 Heavy metal separation from copper-bearing wastes |
| 07/17/1984 | US4460442 Precipitation of lead and lead oxide with base, dissolving in fluoboric acid and electrolysis to recover lead |
| 07/10/1984 | CA1170615A1 Electroplating from a thiosulfate-containing medium without sulfiding |
| 07/10/1984 | CA1170614A1 Energy efficient self-regulating process for winning copper from aqueous solutions |
| 07/03/1984 | US4457988 Electrode of solid vein material in earth; mining |
| 07/03/1984 | US4457812 Preferential extraction of metal halide with nonmetal halide |
| 06/26/1984 | CA1169813A1 Reinforced lead anodes for electrowinning of zinc in a sulphated solution, and process for making same |
| 06/26/1984 | CA1169807A1 Electrodeposited lead dioxide anode on graphite substrate covered with inert cloth |
| 06/20/1984 | EP0111464A1 A method for continually controlling the quality of cathode copper |
| 06/20/1984 | EP0110904A1 Device for casting, particularly converter for casting and/or post-treating molten metal. |
| 06/19/1984 | US4455208 Apparatus for electrolysis using two electrolytically conducting phases |
| 06/12/1984 | US4454013 Method of separating iron and its alloy metals from fine-grained crude oxidic products |
| 06/12/1984 | CA1169020A1 Aqueous electrowinning of metals using fuel oxidizable at the anode |
| 06/05/1984 | US4452706 Metals recovery |
| 06/05/1984 | CA1168618A1 Process for reducing lead peroxide formation during lead electrowinning |
| 05/30/1984 | EP0109468A1 Process for the selective recovery of lead from lead sulphides |
| 05/29/1984 | US4451340 Method for the electrolytic production of lead |
| 05/24/1984 | WO1984001964A1 Process for selectively extracting lead from lead sulphides |
| 05/16/1984 | EP0043854B1 Aqueous electrowinning of metals |
| 05/15/1984 | US4448646 Process for preparation of high purity metals by the electrochemical reduction of chalcogenide esters |
| 05/01/1984 | US4445990 Electrolytic reactor for cleaning wastewater |
| 05/01/1984 | CA1166601A1 Method for selective removal of copper contaminants from activator solutions containing palladium and tin |
| 04/25/1984 | EP0106118A1 Process for removing arsenic from a copper-bearing electrolyte |
| 04/25/1984 | EP0105896A1 Apparatus for continuous production of zinc electroplated sheet. |
| 04/24/1984 | US4444666 Method of removing antimony from an antimony-containing copper electrolyte |
| 04/24/1984 | CA1166022A1 Recovery of zinc from zinc containing sulphidic material |
| 04/24/1984 | CA1166021A1 Removal of manganese and chlorine ions from aqueous acidic zinc sulphate solutions |
| 04/18/1984 | EP0105551A1 Method for the detinning of painted tinplate waste |
| 04/17/1984 | US4443305 Emulsion electrowinning |
| 04/03/1984 | US4440616 Turbulent flow of electrolytic solution and disposable cathode sheet, carbon filled polyvinyl chloride |
| 03/27/1984 | US4439299 Electrolytic metal reclamation device |
| 03/27/1984 | US4439288 Process for reducing Zn consumption in zinc electrolyte purification |
| 03/27/1984 | CA1164219A1 Process for recovery of copper from contaminated solids |
| 03/21/1984 | EP0026207B1 Production of lead from ores and concentrates |
| 03/20/1984 | US4437965 Reduced thickness due to titanium or zirconium reinforcement |
| 03/20/1984 | US4437953 Process for solution control in an electrolytic zinc plant circuit |
| 03/20/1984 | US4437949 Electrolysis of tin complexes |
| 03/14/1984 | EP0102725A2 Recovery of metal value from sulphide materials |
| 03/13/1984 | US4436600 Heating, gradual cooling |
| 03/06/1984 | US4435258 Method and apparatus for the recovery of palladium from spent electroless catalytic baths |
| 02/16/1984 | WO1984000563A1 Recovery of silver and gold from ores and concentrates |