| Patents for C25C 1 - Electrolytic production, recovery or refining of metals by electrolysis of solutions (5,617) |
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| 07/21/1981 | CA1105410A1 Method of obtaining copper from sulphurized concentrates |
| 07/01/1981 | EP0031267A2 Carbon or graphite modified fibrous percolating porous electrode and its use in producing electrochemical reactions |
| 06/30/1981 | US4276147 Apparatus for recovery of metals from solution |
| 06/23/1981 | US4274931 Leaching process for zinc sulphide containing materials |
| 06/23/1981 | US4274930 Process for recovering cobalt electrolytically |
| 06/16/1981 | US4273640 Zinc extraction apparatus |
| 06/16/1981 | CA1103199A1 Electrode with woven fabric screen for preventing electrolyte mist |
| 06/16/1981 | CA1103040A1 Leaching of nickeliferous oxide ores |
| 06/09/1981 | US4272341 Process for recovery of metal values from lead-zinc ores, even those having a high carbonate content |
| 06/09/1981 | US4272340 Electrowinning of lead from H2 SiF6 solution |
| 06/09/1981 | US4272339 Process for electrowinning of metals |
| 06/03/1981 | EP0029582A1 A process for electrodepositing sulphur-bearing nickel |
| 06/02/1981 | CA1102089A1 Electrolytic refining of metal |
| 05/26/1981 | CA1101679A1 Leaching of ni-cu-fe-s matte |
| 05/20/1981 | EP0028839A1 Process for reducing lead peroxide formation during lead electrowinning and an electrolyte for electrowinning lead |
| 05/19/1981 | US4268619 Electroplating from a thiosulfate-containing medium without sulfiding |
| 05/19/1981 | US4268363 Method for electrowinning metals |
| 05/19/1981 | CA1101365A1 Method for electrolytic winning of lead |
| 05/06/1981 | EP0028158A1 Methods and systems of removal of metals from solution and of purification of metals and purified solutions and metals so obtained |
| 04/30/1981 | WO1981001159A1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers |
| 04/22/1981 | EP0027322A1 Process of electrowinning metals |
| 04/21/1981 | US4263109 Reacting with silver, filtration |
| 04/21/1981 | US4263108 Varying plating current |
| 04/07/1981 | CA1098862A1 Zinc regeneration process and device |
| 04/07/1981 | CA1098861A1 Method of obtaining copper from copper-bearing ores |
| 03/19/1981 | WO1981000729A1 Electroplating from a thiosulfate-containing medium without sulfiding |
| 03/17/1981 | US4256559 Method and apparatus for regenerating spent photographic bleach-fixer solution |
| 03/17/1981 | US4256557 Copper electrowinning and Cr+6 reduction in spent etchants using porous fixed bed coke electrodes |
| 03/17/1981 | US4256551 Laminar flow |
| 03/11/1981 | EP0024987A1 Process for the treatment of lead chloride solutions |
| 02/24/1981 | US4252622 Using dilute sulfuric acid and either coarse or fine zinc to precipitate cement copper and cobalt; multistage |
| 02/03/1981 | CA1094973A2 Removal of cobalt from zinc electrolyte using zinc dust and copper arsenate |
| 02/03/1981 | CA1094972A1 Process for the direct electrochemical recovery of copper from dilute ammoniacal solutions |
| 01/27/1981 | CA1094501A1 Process for extraction of gallium from alkaline gallium-containing solutions |
| 01/20/1981 | CA1094012A1 Atmospheric leach ion-exchange process for treating iron-containing nickel-copper matte |
| 01/20/1981 | CA1094011A1 Dichromate leach of copper anode slimes |
| 01/20/1981 | CA1093797A1 Process and an apparatus for the continuous mechanical fabrication of starting sheets for the electrolytic refining of metals, especially copper |
| 01/14/1981 | EP0022324A1 Zinc/cadmium chloride electrolysis |
| 01/07/1981 | EP0021383A1 Process for the recovery of benzene and chlorine from hexachlorocyclohexanes |
| 01/06/1981 | US4243758 Polyurethanes, polyesters, polyethers |
| 01/06/1981 | US4243499 Process for electrolytic recovery of zinc from zinc sulfate solutions |
| 01/06/1981 | US4243498 Nickel electrowinning using reduced nickel oxide as a fluidized cathode |
| 01/06/1981 | CA1093008A1 Continuous detinning system |
| 12/30/1980 | CA1092365A1 Refining of ferrous and base metal sulphide ores and concentrates |
| 12/23/1980 | US4240886 Extractive metallurgy |
| 12/23/1980 | CA1092056A1 Electrowinning cell with bagged anode |
| 12/16/1980 | CA1091448A1 Ion exchange process for the purification of base metal electrolyte solutions |
| 12/11/1980 | WO1980002701A1 Method of electrolytic extraction of gallium or gallium with vanadium concentrate from alkaline solutions of alumina production |
| 12/09/1980 | CA1091042A1 Solvent-extraction process for recovery and separation of metal values |
| 12/02/1980 | US4236982 Lead electrodeposition |
| 12/02/1980 | US4236981 Electrolysis of nickle chloride solution to recover nickle of high purity at the cathode |
| 12/02/1980 | US4236978 Stable lead dioxide anode and method for production |
| 11/18/1980 | US4234401 After the electrodeposition of a nickel-zinc alloy |
| 11/18/1980 | US4234393 Membrane process for separating contaminant anions from aqueous solutions of valuable metal anions |
| 11/18/1980 | CA1089797A1 Fibrous electrolytic bed for the recovery of mercury and other heavy metal ions |
| 11/11/1980 | CA1089188A1 Purification of copper sulfate solution |
| 10/28/1980 | US4230545 Process for reducing lead peroxide formation during lead electrowinning |
| 10/28/1980 | CA1088461A1 Apparatus for the continuous electrolytic refining and extraction of elements and compounds |
| 10/21/1980 | US4229271 Method of recovering lead values from battery sludge |
| 10/21/1980 | US4229270 Process for the recovery of metal values from anode slimes |
| 10/21/1980 | CA1088023A1 Continuous production of iron by electrolysis of a ferrous electrolyte |
| 10/16/1980 | WO1980002164A1 Production of lead from ores and concentrates |
| 10/15/1980 | EP0017085A1 Process and apparatus for electro-depositing metals, in particular copper |
| 10/07/1980 | CA1087131A1 Electrolytic removal of heavy metal ions from aqueous solutions |
| 09/30/1980 | US4225571 Electrowinning of metal from sulphide ores and recovery of water soluble sulphides |
| 09/23/1980 | US4224122 Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates |
| 09/23/1980 | CA1086254A1 Divided electrochemical cell with electrode of circulating particles |
| 09/23/1980 | CA1086069A1 Recovery and purification of iridium |
| 09/16/1980 | US4222999 Reduction, oxidation, hydrolysis |
| 09/16/1980 | US4222832 Cascading electrolyte bleed streams |
| 09/02/1980 | CA1084867A1 Decreasing the cyanide and heavy metal content of an aqueous solution |
| 08/26/1980 | CA1084445A1 Cathode starting blanks for metal deposition |
| 08/12/1980 | US4217189 Method and apparatus for control of electrowinning of zinc |
| 08/12/1980 | US4217188 Method for storing developers |
| 07/29/1980 | US4214964 Electrolytic process and apparatus for the recovery of metal values |
| 07/29/1980 | US4214952 Anodizing, bubbling |
| 07/29/1980 | CA1082468A1 Chlorine leaching of nickel matte |
| 07/15/1980 | US4212722 Apparatus for electrowinning metal from metal bearing solutions |
| 07/08/1980 | US4211630 Electrolytic recovery of silver from photographic bleach-fix baths |
| 07/08/1980 | CA1081160A1 Anodized steel cathode blanks |
| 07/01/1980 | US4210502 Process for recovery of waste H2 SO4 and HCl |
| 06/24/1980 | CA1080307A1 Optical telemetry for aluminium reduction plant bridge cranes |
| 06/10/1980 | US4207153 Copper electrodeposition |
| 06/03/1980 | US4206023 Zinc recovery by chlorination leach |
| 05/27/1980 | US4204922 Nonpolluting process |
| 05/27/1980 | CA1078324A1 Method for producing regular electronickel or s nickel rounds from electroplating baths giving highly stressed deposits |
| 05/20/1980 | CA1077888A1 Manganese dioxide electrodes |
| 05/20/1980 | CA1077884A1 Electrowinning of copper in presence of high concentration of iron |
| 05/13/1980 | CA1077431A1 Method for producing electrolytic high purity lead using large sized electrodes |
| 05/06/1980 | US4201653 Electrowinning cell with bagged anode |
| 05/06/1980 | US4201648 Nickel recovery from sulfur-deficient mattes |
| 05/06/1980 | US4201636 Recovering group 8 metal hydroxides and hydrated oxides from effluents; adjust ph, filtration, heating, and electrolysis |
| 05/06/1980 | CA1076815A1 Method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction |
| 04/29/1980 | CA1076364A1 Process for concentrating and recovering gallium |
| 04/22/1980 | CA1076061A1 Electrowinning method |
| 04/22/1980 | CA1075912A1 Process for the purification of an aqueous solution of zinc sulphate |
| 04/15/1980 | US4198231 Recovery and separation of gadolinium and gallium |
| 04/15/1980 | CA1075472A1 Process for the recovery of antimony values from ores containing sulfo-antimony compounds of copper, and arsenic |
| 04/08/1980 | CA1075195A1 Arsenic removal from electrolytes |
| 04/01/1980 | US4196059 Method for electrolysis of non-ferrous metal |