| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 04/09/1987 | DE3534506A1 Process for producing nickel powder by means of partially oxidised natural gas |
| 04/07/1987 | US4655928 Recycling |
| 04/07/1987 | US4655829 Metal recovery process |
| 03/26/1987 | WO1987001731A1 Production of elements and compounds by deserpentinization of ultramafic rock |
| 03/24/1987 | US4652307 Refining and/or alloying of a 3 percent to 6 percent carbon iron, cobalt, or nickel on a molten silver surface at temperatures 1000°C° C. producing an iron cobalt or nickel powder, or their alloys and a petroleum product |
| 03/24/1987 | US4652299 Process for treating metals and alloys for the purpose of refining them |
| 02/24/1987 | US4645186 Apparatus for processing sulphide concentrates and sulphide ores into raw material |
| 02/19/1987 | DE3528257A1 Process for preparing sinterable nickel powder for electrode structures of alkaline batteries |
| 02/04/1987 | EP0210387A1 Selective removal of metals from aqueous solutions with dithiophosphinic acids |
| 02/04/1987 | EP0137048B1 Extractant for use in extractive separation of nickel and cobalt and process of using same |
| 01/14/1987 | EP0040243B1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers |
| 12/30/1986 | EP0206377A2 Extraction of transition metals from organic solutions |
| 11/18/1986 | US4622905 Furnacing |
| 11/06/1986 | WO1986006361A1 Preparing metal compounds, alloys and metals by pyrolysis |
| 11/06/1986 | EP0159349A4 Processes for treating waste streams. |
| 11/04/1986 | US4620964 Process for the treatment of complex manganese ores, such as marine nodules |
| 10/29/1986 | EP0199441A1 Reductive smelting of sulfides and a burner therefor |
| 10/21/1986 | CA1212840A1 Control of silica scaling during acid leaching of lateritic ore |
| 10/15/1986 | EP0197444A2 Recovery of cobalt and chromium |
| 10/15/1986 | CN85102902A Process for boiling smelting |
| 08/26/1986 | USRE32234 Non-ferrous metal treatment |
| 08/26/1986 | US4608235 Oxidation of alloy in fused sodium hyrooxide |
| 08/26/1986 | US4608084 Recovery of cobalt and chromium |
| 08/19/1986 | US4606763 Using autoclave with successive compartments the first being largest in size |
| 08/06/1986 | EP0189831A1 Cobalt recovery method |
| 07/15/1986 | US4600483 Electrolytic reduction of cobaltic ammine |
| 07/08/1986 | US4599108 Method for processing sulphide concentrates and sulphide ores into raw material |
| 06/24/1986 | CA1206339A1 Recovery of cobalt and nickel from sulphidic material |
| 06/10/1986 | US4594102 Roasting, leaching under oxidation conditions |
| 06/05/1986 | WO1986003230A1 Electrolytic reduction of cobaltic amine |
| 05/22/1986 | WO1986002949A1 Method for the treatment of metals and alloys for the refining thereof |
| 05/13/1986 | US4588436 Method of recovering metals from liquid slag |
| 04/29/1986 | US4585477 Method for separating and recovering nickel and copper from complex materials |
| 03/26/1986 | EP0175556A2 Process for the pressure oxidation leaching of non-ferrous metal containing sulphidic material |
| 03/25/1986 | CA1202185A1 Method and apparatus for converting matte, particularly high-grade matte |
| 03/18/1986 | US4576636 Process for beneficiating oxidic ores |
| 02/18/1986 | CA1200702A1 Method of recovering metals from liquid slag |
| 02/04/1986 | CA1200074A1 Process for production of metal calcines of low sulfur content |
| 12/18/1985 | EP0165166A1 Process for treating complex manganese ores such as marine nodules |
| 12/03/1985 | CA1197490A1 Purification of nickel electrolyte |
| 11/12/1985 | CA1196502A1 Method of producing metallic cobalt from oxide cobalt- based material |
| 11/07/1985 | WO1985004905A1 Process for controlling slag chemistry in a refining vessel |
| 11/05/1985 | US4551175 Method for controlling slag chemistry in a refining vessel |
| 10/30/1985 | EP0159349A1 Processes for treating waste streams |
| 10/22/1985 | US4548794 Method of recovering nickel from laterite ores |
| 10/22/1985 | CA1195511A1 Separation of cobalt from nickel |
| 10/22/1985 | CA1195510A1 Process for the production of nickel, high-purity magnesium oxide and cement |
| 10/22/1985 | CA1195509A1 Method of producing metallic nickel |
| 10/15/1985 | US4547348 Conditioning of laterite pressure leach liquor |
| 10/08/1985 | US4545814 Reducing sulfate solution with hydrogen and hydride, borohydride or boride catalyst |
| 10/01/1985 | US4544141 Process and apparatus for continuous converting of copper and non-ferrous mattes |
| 09/25/1985 | EP0145728A4 Extraction of metals from ores. |
| 09/17/1985 | US4541994 Method of liberating nickel- and cobalt-enriched fines from laterite |
| 09/10/1985 | CA1193107A1 Process for the selective dissolution of cobalt from cobaltite-pyrite concentrates |
| 08/07/1985 | EP0150438A2 Method of recovering valuable metals from waste materials, particularly from spent petroleum cracking catalysts |
| 07/23/1985 | CA1190751A1 Process and apparatus for continuous converting of copper and non-ferrous mattes |
| 07/09/1985 | US4528167 Selective solvent extraction using organophosphorus and carboxylic acids and a non-chelating aldehyde oxime |
| 07/09/1985 | CA1190128A1 Chemical dissolution of scale formed during pressure leaching of nickeliferous oxide and silicate ores |
| 07/09/1985 | CA1190048A1 Selective solvent extraction using organophosphorus and carboxylic acids |
| 06/26/1985 | EP0145728A1 Extraction of metals from ores |
| 05/21/1985 | US4518420 Winning metal from ore |
| 05/07/1985 | US4515757 Stripping a solution containing molybdenum, tungsten and/or vanadium values |
| 05/07/1985 | US4515630 Process of continuously treating an alloy melt |
| 04/30/1985 | US4514369 Recovery of cobalt, molybdenum, nickel, tungsten and vanadium from an aqueous ammonia and ammonium salt solution by coextracting molybdenum, tungsten and vanadium and sequential extraction of nickel and cobalt |
| 04/30/1985 | US4514368 Leaching nickel, cobalt, molybdenum, tungsten, and vanadium from spent hydroprocessing catalysts |
| 04/25/1985 | WO1985001750A1 Smelting nickel ores or concentrates |
| 04/25/1985 | WO1985001670A1 Processes for treating waste streams |
| 04/17/1985 | EP0137048A1 Extractant for use in extractive separation of nickel and cobalt and process of using same |
| 04/09/1985 | CA1185095A1 Process for autogenous oxygen smelting of sulphide materials containing base metals |
| 04/03/1985 | EP0136028A2 Extracting cobalt from aqueous solutions containing nickel |
| 03/27/1985 | EP0135457A1 Pretreatment of ores having an argillaceous gangue by alkali humidifying and thermal treatment |
| 03/27/1985 | EP0135050A2 Process of continuously treating an alloy melt |
| 03/12/1985 | US4504309 Process and apparatus for continuous converting of copper and non-ferrous mattes |
| 03/12/1985 | CA1183690A1 Chloride leaching of nickel-cobalt-iron sulphides |
| 03/12/1985 | CA1183689A1 Method for separating and recovering nickel and copper from complex materials |
| 02/19/1985 | US4500495 Roasting, contacting with aqueous ammonia and sulfur dioxide, precipitation with hydrogen sulfide |
| 02/19/1985 | US4500396 Copper recovery process |
| 02/05/1985 | CA1181954A1 Method for decreasing metal losses in nonferrous smelting operations |
| 01/15/1985 | CA1180904A1 Process for the exploitation of low-grade oxidic and iron-bearing complex ores or concentrates |
| 01/15/1985 | CA1180902A1 Process for recovering metals |
| 12/25/1984 | US4490174 Process for the preparation of a ferronickel concentrate |
| 12/11/1984 | CA1179151A2 Extraction process for the selective romoval of cobalt (ii) from aqueous solutions |
| 12/06/1984 | WO1984004759A1 Extraction of metals from ores |
| 11/06/1984 | CA1177256A1 Extraction process for the selective removal of cobalt (ii) from aqueous solutions |
| 11/06/1984 | CA1177255A1 Extraction process for the selective removal of cobalt (ii) from aqueous solutions |
| 10/16/1984 | US4477277 Process for producing high-purity metals |
| 10/09/1984 | CA1175659A1 Method and apparatus for selective reduction of metallic oxides |
| 09/11/1984 | US4470845 Oxidation, multistage, desulfurization |
| 09/11/1984 | US4470581 Apparatus for selective reduction of metallic oxides |
| 09/04/1984 | CA1173655A1 Acid leach process for treating magnetic and non- magnetic nickel-copper mattes |
| 08/30/1984 | WO1984003305A1 Extractant for use in extractive separation of nickel and cobalt and process of using same |
| 08/21/1984 | US4466828 Process for smelting nickel |
| 08/21/1984 | US4466826 Process for recovering metal values from alloy scraps |
| 08/15/1984 | EP0115928A2 A process for recovering metal values from alloy scraps |
| 08/07/1984 | US4464348 Selective extraction of cobalt from ores |
| 08/01/1984 | EP0114747A2 Winning metal from ore |
| 07/25/1984 | EP0028634B1 Method for producing cobalt metal powder |
| 07/24/1984 | CA1171287A1 Acid leaching of lateritic nickel ores |
| 07/03/1984 | CA1170060A1 Chromium recovery from superalloy scrap by selective chlorine leaching |
| 05/29/1984 | US4451291 Overlappi-ng short blowing periods for removal of impurities |