| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 05/01/1984 | US4445932 Method of recovering ferronickel from oxidated nickel ores |
| 04/10/1984 | US4442072 Selective recovery of base metals and precious metals from ores |
| 03/21/1984 | EP0103312A2 Process for producing high-purity metals |
| 03/06/1984 | US4435368 Hydrometallurgical process for selective dissolution of mixtures of oxy compounds |
| 02/28/1984 | US4434141 Leaching spent hydroprocessing catalysts |
| 02/28/1984 | US4434140 Stripping a solution containing molybdenum and vanadium values |
| 02/21/1984 | US4432953 Leaching cobalt from spent hydroprocessing catalysts with sulfur dioxide |
| 02/14/1984 | US4431613 Leaching of sulphidic mattes containing non-ferrous metals and iron |
| 01/17/1984 | CA1160460A1 Process of upgrading nickeliferous oxide ores of lateritic origin |
| 01/10/1984 | CA1160057A1 Process for the recovery of nickel, cobalt and manganese from their oxides and silicates |
| 12/27/1983 | US4423011 Selective recovery of base metals and precious metals from ores |
| 12/20/1983 | US4421556 Method for decontamination of nickel-fluoride-coated nickel containing actinide-metal fluorides |
| 11/29/1983 | CA1157664A1 Process for the smelting of copper or nickel concentrate |
| 11/15/1983 | US4415542 Easy descaling of water-soluble magnesium sulfate-hematite |
| 11/15/1983 | US4415541 Method of recovering nickel from a spent fat hardening catalyst |
| 11/15/1983 | US4415356 A roasted portion blended with urroasted material using a flux |
| 11/01/1983 | CA1156052A1 Recovery of metal values |
| 10/18/1983 | US4410498 Acid leaching of nickel from serpentinic laterite ores |
| 10/11/1983 | US4409190 Extracting cobalt from spent hydroprocessing catalysts with cyanide |
| 10/11/1983 | US4409019 Method for producing cobalt metal powder |
| 10/11/1983 | CA1155084A1 Process for the recovery of metal values from anode slimes |
| 10/04/1983 | CA1154601A1 Cobalt leaching process |
| 09/21/1983 | EP0089254A1 Control of silica scaling during acid leaching of lateritic ore |
| 09/06/1983 | CA1153210A1 Process and unit for preparing alloyed or not, reactive metals by reduction of their halides |
| 08/30/1983 | US4401630 Oxidative leaching, metathesis, treating filtrate with ammonia |
| 08/23/1983 | CA1152337A1 Leaching of sulphidic mattes containing non-ferrous metals and iron |
| 08/16/1983 | US4399109 Control of silica scaling during acid leaching of lateritic ore |
| 08/16/1983 | US4398945 Process for producing a ferronickel alloy from nickel bearing laterites |
| 08/16/1983 | CA1151881A1 Cobalt metal powder by hydrogen reduction |
| 08/09/1983 | CA1151430A1 Reduction smelting process |
| 08/09/1983 | CA1151429A1 Process for beneficiation of oxidic ores |
| 08/02/1983 | CA1150953A1 Liquid-liquid extraction of metal values from aqueous solution |
| 07/26/1983 | US4395315 Recovery of nickel from waste materials |
| 07/26/1983 | US4395278 Method for producing cobalt metal powder |
| 07/26/1983 | CA1150518A1 Recovering non-volatile metals from dust containing metal oxides |
| 07/19/1983 | US4394164 Process for removal of harmful impurities from metallurgical sulphide melts |
| 07/19/1983 | CA1150064A1 Process and apparatus for recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers |
| 07/13/1983 | EP0028638B1 Method for producing cobalt metal powder |
| 06/28/1983 | CA1148750A1 Method for producing cobaltic hexammine compounds and cobalt metal powder |
| 06/21/1983 | CA1148365A1 Vapourmetallurgical process for the recovery of ultrapure cobalt from aqueous solution |
| 06/21/1983 | CA1148364A1 Method for producing cobalt metal powder |
| 06/14/1983 | CA1147970A1 Process for cobalt recovery from mixed sulfides |
| 05/24/1983 | US4384940 Chlorine leaching of nickel-cobalt-iron sulphides |
| 05/24/1983 | US4384885 Process for the recovery of metals from catalysts |
| 05/10/1983 | CA1145954A1 Process for the oxidation of molten low- iron metal matte to produce raw metal |
| 05/10/1983 | CA1145952A1 Process for selective leaching of nickel- copper matte |
| 05/03/1983 | US4381939 Method for selective reduction of metallic oxides |
| 04/12/1983 | CA1144366A1 Sprinkler burner and method of introducing particulate material and a gas into a reactor |
| 04/05/1983 | CA1143952A1 Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons |
| 04/05/1983 | CA1143951A1 Process for oxygen sprinkle smelting of sulfide concentrates |
| 03/29/1983 | CA1143573A1 Recovery of nickel from nickeliferous sulfide material |
| 03/29/1983 | CA1143559A1 Apparatus for automatically punching the tuyeres of a converter |
| 03/22/1983 | US4377410 Sulfiding |
| 03/22/1983 | CA1143166A1 Recovery of nickel and other metallic values from waste |
| 03/15/1983 | US4376653 Process for the production of nickel, high-purity magnesium oxide and cement |
| 03/08/1983 | CA1142366A1 Method of converting a bath of non-ferrous molten metal matte |
| 02/15/1983 | US4374101 Chemical dissolution of scale formed during pressure leaching of nickeliferous oxide and silicate ores |
| 02/15/1983 | CA1141175A1 Method of safely injecting oxygen reactive materials into a submerged oxygen gas stream |
| 02/15/1983 | CA1141168A1 Method of improving the performance of submerged oxygen injectors |
| 02/08/1983 | CA1140766A1 Dissolution of nickeliferous sulfide material |
| 01/04/1983 | CA1138650A1 Purification of nickel chloride solutions |
| 12/21/1982 | CA1137762A1 Hydrometallurgical recovery of metal values |
| 12/07/1982 | US4362558 Process of upgrading nickeliferous oxide ores of lateritic origin |
| 11/30/1982 | CA1136427A1 Polycrystalline diamond and/or cubic boron nitride body |
| 11/02/1982 | CA1134621A1 Hydrometallurgical recovery of metal values |
| 09/21/1982 | CA1131916A1 Activated roasting of high magnesium nickeliferous laterites and garnierites |
| 09/07/1982 | US4348224 Digestion, cemetation, reduction |
| 08/25/1982 | EP0058453A1 Method of recovering nickel from a spent fat hardening catalyst |
| 08/17/1982 | US4344792 Reduction smelting process |
| 06/29/1982 | US4337226 Recovery of platinum-group metals from ores |
| 06/29/1982 | US4337086 Separation of mineral particles by size, compaction, flash oxidati |
| 06/22/1982 | CA1126201A1 Hydrometallurgical method for treating nickel mattes |
| 06/15/1982 | US4334918 Method of recovering non-ferrous metals from their sulphide ores |
| 06/15/1982 | CA1125519A1 Metal recovery |
| 06/08/1982 | CA1125227A1 Process for recovering cobalt electrolytically |
| 05/27/1982 | WO1982001725A1 A method for separating and recovering nickel and copper from complex materials |
| 05/26/1982 | EP0052595A1 A method for separating and recovering nickel and copper from complex materials |
| 05/25/1982 | US4331520 Process for the recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers |
| 05/25/1982 | CA1124085A1 Liquid-liquid extraction of nickel values |
| 05/18/1982 | CA1123612A1 Selective recovery of nickel, cobalt and manganese from sea nodules with sulfurous acid |
| 05/10/1982 | EP0040243A4 Process and apparatus for producing metals at porous hydrophobic catalytic barriers. |
| 05/04/1982 | US4328192 Ammoniacal nickel leach of laterites |
| 04/27/1982 | US4326702 Sprinkler burner for introducing particulate material and a gas into a reactor |
| 04/13/1982 | US4324764 Apparatus for continuous leaching of ores |
| 04/06/1982 | US4323541 Selective two stage leaching of nickel from nickel-copper matte |
| 03/30/1982 | CA1120690A1 Process for the recovery of cobalt from its impure, aqueous, in particular nickel-bearing, solutions and catalyst therefore |
| 03/10/1982 | EP0047076A1 A process of making cobalt metal powder |
| 03/10/1982 | EP0046940A2 Extraction process for the selective removal of cobalt (II) from aqueous solutions |
| 03/10/1982 | EP0046933A2 Extraction process for the selective removal of cobalt (II) from aqueous solutions |
| 03/09/1982 | CA1119417A1 Continuous process of converting non-ferrous metal sulfide concentrates |
| 03/02/1982 | US4317804 Process for the selective removal of ferric ion from an aqueous solution containing ferric and other metal ions |
| 03/02/1982 | CA1119343A1 Selective ion exchange media |
| 03/02/1982 | CA1119002A1 Process for the production of nickel alloys |
| 02/16/1982 | US4315774 Method of safely injecting oxygen reactive materials into a submerged oxygen gas stream |
| 02/16/1982 | CA1118210A1 Process for separating iron from an organic extraction medium |
| 02/09/1982 | CA1117771A1 Process and apparatus for continuous leaching of ores |
| 02/09/1982 | CA1117770A1 Nickel and cobalt extractant and method of use |
| 02/09/1982 | CA1117769A1 Winning nickel and cobalt with mercaptide extractants and carbon monoxide strip |
| 01/26/1982 | US4312841 Adding calcium oxide before reductive roast |
| 01/26/1982 | CA1116871A1 Process for extracting nickel from pre-reduced lateritic ore |