| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 07/29/1980 | US4214900 Production of nonferrous metals with low selenium contents |
| 07/29/1980 | US4214896 Process for producing cobalt metal powder |
| 07/29/1980 | US4214895 Method for producing cobalt metal powder |
| 07/29/1980 | US4214894 Mutlistage, multizonal |
| 07/29/1980 | CA1082468A1 Chlorine leaching of nickel matte |
| 07/08/1980 | US4211556 Reverberatory smelting of non-ferrous metal sulfide ores |
| 07/08/1980 | CA1080979A1 Method for precipitating metal cement from a solution mixed with a precipitant |
| 06/17/1980 | US4208380 Process for the recovery of cobalt from its impure, aqueous, in particular nickel-bearing, solutions and catalyst therefor |
| 05/27/1980 | CA1078191A1 Method of recovery of metal compounds and metals from nitrate solutions |
| 05/20/1980 | CA1077725A1 Process for obtaining metal values by leaching raw sea nodules |
| 05/06/1980 | US4201648 Nickel recovery from sulfur-deficient mattes |
| 04/30/1980 | EP0010367A1 Method of recovering metal values |
| 04/29/1980 | US4200455 Reduction, extraction, compounds, metal |
| 04/29/1980 | US4200453 Treating with oxygen and lime to form a slag |
| 04/29/1980 | CA1076368A1 Upgrading the nickel content from low grade nickel lateritic iron ores by a combined process of segregation and magnetic separation or flotation |
| 04/22/1980 | US4199352 Sulfur trioxide as protective fluid |
| 04/15/1980 | CA1075467A1 Process for extracting metal values from manganese nodules |
| 04/08/1980 | CA1075015A1 Process for working up manganese modules and recovery of the contained valuable constituents |
| 04/08/1980 | CA1075014A1 Nickel extraction process |
| 04/01/1980 | US4196076 Separation of cobalt and nickel by solvent extraction |
| 04/01/1980 | US4195986 Ore, coal, and sulfur pellet |
| 03/25/1980 | US4195065 Leaching nickeliferous oxide ores |
| 03/18/1980 | US4193969 Selective nickel and cobalt extraction from aqueous acidic solutions |
| 03/11/1980 | CA1073217A1 Recovery of metal values from basic aqueous ammoniacal leach liquor |
| 02/12/1980 | US4188204 Metallurgical process using liquid fuels |
| 02/05/1980 | US4187281 Reduction, leaching |
| 01/29/1980 | US4185996 Arsenic and sulfur elimination from cobaltiferous ores |
| 01/29/1980 | CA1070503A1 Chromite recovery from chromite-bearing ore |
| 01/22/1980 | US4184868 Method for producing extra fine cobalt metal powder |
| 12/11/1979 | US4178172 Pyrolysis of cobalt/iii/ hexammine salt to the oxide |
| 12/11/1979 | CA1067704A1 Process for liquid-liquid extraction of cobalt |
| 11/13/1979 | CA1066062A1 Recovery of nitric acid soluble transition metals from sulfur and iron containing ores of the same |
| 11/06/1979 | US4173467 Process for recovering valuable metals from superalloy scrap |
| 10/23/1979 | CA1064854A1 Method of extracting constituent metal values from pyrometallic nodules from the sea |
| 10/16/1979 | US4171216 Process for refining non-ferrous matte |
| 10/09/1979 | CA1063967A1 Zinc hydrometallurgical process |
| 09/18/1979 | US4168156 Method of and electric furnace for processing nonferrous molten slags |
| 09/18/1979 | US4168155 Process for smelting lead refinery dross |
| 09/18/1979 | CA1062514A1 Reduction smelting of manganese nodules with a liquid reductant |
| 09/11/1979 | CA1062018A1 Recovery of nickel and cobalt carbonates from leach solutions |
| 09/05/1979 | EP0003853A1 Process for continuously converting non-ferrous metal sulphide concentrates |
| 09/04/1979 | CA1061571A1 Cuprion process start-up control |
| 09/04/1979 | CA1061570A1 Manganese nodules for oxidation leaching |
| 09/04/1979 | CA1061568A1 Process for extracting metal values from manganiferous ocean floor nodule ore |
| 08/14/1979 | CA1060219A1 Process for leaching raw sea nodules |
| 08/14/1979 | CA1060217A1 Process for separating nickel, cobalt and copper |
| 08/14/1979 | CA1060215A1 Refining of manganese oxide ores |
| 08/07/1979 | CA1059770A1 Hydrometallurgical treatment process for extracting constituent metal values from ferro-nickel |
| 08/07/1979 | CA1059769A1 Extraction of metal values from leached slurries |
| 07/31/1979 | US4162991 Elution with an aliphatic monocarboxylic acid |
| 07/31/1979 | US4162916 Process for the treatment of complex metal ores containing, in particular, manganese and copper, such as oceanic nodules |
| 07/31/1979 | US4162915 Process for treating lead-copper-sulphur charges |
| 07/03/1979 | CA1057509A1 Metal powder production by direct reduction in an arc heater |
| 07/03/1979 | CA1057507A1 Process for recovering cobalt values from an aqueous ammonical solution containing dissolved cobalt and other metals as ammine sulphates |
| 06/26/1979 | CA1057063A1 Recovery of base metals from manganese-containing ores |
| 06/19/1979 | CA1056603A1 Fuel supply control to the reaction shaft in the operation of a flash smelter |
| 06/19/1979 | CA1056579A1 Powder-and-gas reactions |
| 06/12/1979 | CA1056161A1 Production of cobalt from cobalt sulfide |
| 06/05/1979 | CA1055711A1 Method of enhancing the atmospheric leaching of nickeliferous matte |
| 06/05/1979 | CA1055710A1 Nickel matte refining by oxidation |
| 05/22/1979 | CA1054778A1 Hydrometallurgical processing of metal sulfides |
| 05/08/1979 | US4153450 Flow and composition of reducing gas |
| 05/08/1979 | CA1053914A1 Metal recovery from sulfate solutions |
| 05/08/1979 | CA1053913A1 Leaching a copper-nickel concentrates |
| 05/08/1979 | CA1053907A1 Process for the thermal treatment of lateritic nickel ore |
| 05/01/1979 | CA1053471A1 Selective reduction of oxidized ore |
| 04/24/1979 | CA1053008A1 Method of operating converter furnace for treating matte |
| 04/17/1979 | US4149875 Purification of nickel and cobalt metal powders by a caustic wash |
| 04/17/1979 | CA1052584A1 Method of extraction of nickel and copper from the nodules of deep-sea beds |
| 04/10/1979 | US4148816 Alkali metal mercaptide solvent extraction of cobalt, nickel |
| 04/10/1979 | US4148815 Amino-thiol nickel and cobalt solvent extraction |
| 04/10/1979 | US4148813 Hydrometallurgy |
| 04/10/1979 | US4148632 Treatment of dissolved basic nickel carbonate to obtain nickel |
| 04/10/1979 | US4148631 Stripping of cobalt from nickel-cobalt loaded organic |
| 04/10/1979 | US4148630 Direct production of copper metal |
| 04/03/1979 | CA1051671A1 Process for treating manganese nodules |
| 03/13/1979 | US4144056 Process for recovering nickel, cobalt and manganese from their oxide and silicate ores |
| 03/13/1979 | CA1050282A1 Recovery of nickel and other metals from sulphide ores |
| 03/13/1979 | CA1050281A1 Two-stage fluid bed reduction of manganese nodules |
| 03/13/1979 | CA1050280A1 High temperature neutralization of laterite leach slurry |
| 03/13/1979 | CA1050278A1 Leaching limonitic ores |
| 02/27/1979 | CA1049267A1 Method of reclaiming nickel values from a nickeliferous alloy |
| 02/13/1979 | US4139502 Nickel selective dioxime-containing polyurethane foams |
| 02/13/1979 | US4139371 Process and device for suspension smelting of finely divided oxide and/or sulfide ores and concentrates, especially copper and/or nickel concentrates rich in iron |
| 02/13/1979 | CA1048278A1 Metal carbonate recycle to reduction circuit in the cuprion process |
| 02/06/1979 | US4138465 Selective recovery of nickel, cobalt, manganese from sea nodules with sulfurous acid |
| 02/06/1979 | US4138249 Process for recovering valuable metals from superalloy scrap |
| 01/30/1979 | US4137291 Extraction of metal values from manganese nodules |
| 01/30/1979 | CA1047258A1 Process for recovering copper from basic salt mixtures |
| 01/23/1979 | US4135918 Roast-reductive leach process for copper recovery |
| 01/23/1979 | US4135913 Thermal concentration of non-ferrous metal values in sulfide minerals |
| 01/16/1979 | CA1046289A1 Hydrometallurgical treatment of nickel and copper bearing intermediates |
| 01/16/1979 | CA1046287A1 Atmospheric leaching of matte containing iron |
| 12/19/1978 | CA1044470A1 Process for recovering cobalt |
| 12/19/1978 | CA1044468A1 Extracting of iron ore and chromium from nickel lateritic ores |
| 12/05/1978 | US4128416 To react with nickel solution and carbon monoxide to form nickel carbonyl, decomposition |
| 11/14/1978 | US4125587 Removing zinc from a nickel solution by extraction |
| 11/07/1978 | CA1041772A1 Continuous solvent extraction of nickel from ammoniacal solutions |
| 10/31/1978 | US4123260 Chelating ion exchange resin having aminocarboxylic acid functional groups |
| 10/24/1978 | CA1041026A1 Process for the recovery of carbonyls and carbon monoxide from carbonyl process gases |