| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 10/11/2001 | CA2404003A1 Heap leaching of nickel containing ore |
| 10/10/2001 | EP1141424A1 Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 10/10/2001 | CN1072730C Recovery process of waste cobalt-molybdenum catalyst |
| 10/10/2001 | CN1072729C Method for recovering cobalt from cobalt containing waste catalyst used in carbonylation synthesizing process |
| 10/04/2001 | WO2001073144A2 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 10/04/2001 | WO2001072456A1 Method for manufacturing metal parts |
| 09/27/2001 | WO2001032943A3 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 09/27/2001 | DE10014403A1 Process for the powder metallurgy production of metal bodies comprises mixing a metal compound powder such as oxide powder with a rheology-improving additive, removing the additive; and reducing the metal compound using a reducing gas |
| 09/20/2001 | WO2001068927A1 Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery |
| 09/19/2001 | EP1133576A1 Recovering metals from soil |
| 09/19/2001 | EP0670911B1 Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment |
| 09/18/2001 | US6290696 Cryoplasty device and method |
| 09/12/2001 | EP1132132A1 Method for recovering catalyst transition metals from salt-containing reaction mixtures |
| 09/12/2001 | EP1131475A1 Nickel carbonyl vapour deposition apparatus and process |
| 09/12/2001 | CN1312867A Method for removing sulfur in nickel leaching process |
| 09/06/2001 | DE10008904A1 Verfahren zur Rückgewinnung von Katalysator-Übergangsmetallen aus salzhaltigen Reaktionsgemischen A process for recovering catalyst-transition metals from salt-containing reaction mixtures |
| 09/05/2001 | EP1129225A1 Sulfatisation process for metal extraction from sulfide ores |
| 09/05/2001 | CN1070536C Method for recovering reusable elements from rate earth-nickel alloy |
| 08/30/2001 | WO2001062993A1 Process and apparatus for recovery of cyanide and metals |
| 08/30/2001 | US20010017065 Separating from the mixture the transition metal compound and the salts, combusting, quenching resulting flue gas/salt mixture with water and combustion residue containing transition metal is dried and converted to fresh catalyst |
| 08/30/2001 | CA2400806A1 Process and apparatus for recovery of cyanide and metals |
| 08/14/2001 | US6274104 Non-ferrous metal recovery method utilizing a melt sulphation reaction |
| 08/09/2001 | US20010012499 Cobalt recovery process |
| 08/07/2001 | US6270554 Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery |
| 08/02/2001 | WO2001055463A1 Carbonyl process for recovery of purified cobalt |
| 07/31/2001 | US6267800 Process for producing cobalt metal powder from nickel-cobalt sulphides |
| 07/25/2001 | CA2296964A1 Cobalt recovery process |
| 07/24/2001 | US6264904 Process for recovery of cobalt by selective precipitation of cobalt-calcium double salt |
| 07/17/2001 | US6261527 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 07/17/2001 | US6261526 Nickel recovery process and compositions for use therein |
| 07/17/2001 | US6261340 Method for transforming slag derived from non-iron metallurgy |
| 07/05/2001 | WO2001048252A1 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 07/05/2001 | CA2395457A1 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 07/03/2001 | US6255510 Production of aromatic carboxylic acids and recovery of Co/Mn catalyst from ash |
| 06/28/2001 | WO2001046482A1 Iron-nickel alloy production |
| 06/13/2001 | CN1067113C Pollution-free fire smelting method for Cu-Ni sulfide mine |
| 05/29/2001 | US6238457 Flow velocity and flowing direction of the reaction gas and solids are adjusted at a point where the reaction gas and solids are discharged into the suspension smelting furnace |
| 05/25/2001 | WO2001036693A2 Recovery of metals from ore by bioleaching with sulfur addition |
| 05/24/2001 | US20010001650 Recovery of nickel and cobalt from ore |
| 05/17/2001 | WO2001034859A1 Method for reduction of nickel |
| 05/17/2001 | WO2001034857A1 A method for the reduction of nickel from an aqueous solution |
| 05/16/2001 | EP1099746A2 Continuous process for transforming material and apparatus apt to carry out such process |
| 05/16/2001 | EP1098999A1 Melt and melt coating sulphation process |
| 05/15/2001 | US6231823 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 05/10/2001 | WO2001032945A1 Nickel powder desulfurisation |
| 05/10/2001 | WO2001032944A1 Method for leaching nickeliferous oxide ores of high and low magnesium laterites |
| 05/10/2001 | WO2001032943A2 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 05/10/2001 | CA2389653A1 Method for leaching nickeliferous laterite ores |
| 05/10/2001 | CA2389635A1 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 05/10/2001 | CA2389342A1 Nickel powder desulfurisation |
| 05/09/2001 | CN1294035A Method for prepn. of adhered magnet of recovered raw material powder and recovering and utilizing adhered magnet |
| 05/08/2001 | US6228143 Via preheating the sweep gas above auto-ignition temperature of polymers and controlling the oxygen content within oxidizer to reduce risk of explosion; cadmium, nickel, and iron remain for subsequent processing; pyrometallurgy |
| 05/02/2001 | EP1096517A2 Method of producing recycled raw material powder for use in bonded magnet and method of recycling bonded magnet |
| 05/02/2001 | CN1293260A Process for recovering Co and Mn catalyst from oxidized dregs of terephthalic acid |
| 04/26/2001 | WO2001029276A1 Resin-in-pulp method for recovery of nickel and cobalt from oxidic ore leach slurry |
| 04/26/2001 | CA2387834A1 Resin-in-pulp method for recovery of nickel and cobalt from oxidic ore leach slurry |
| 04/25/2001 | EP0832303B1 Chloride assisted hydrometallurgical extraction of metal |
| 04/05/2001 | WO2001023067A1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 04/05/2001 | CA2384631A1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 04/04/2001 | EP0854765B1 Process for the production of ultrafine particles |
| 04/04/2001 | CN1064086C Method for recovering valuable elements from rare-earth and ferrous alloy |
| 03/27/2001 | US6206951 Pressure leaching using copper sulfate; heating |
| 03/20/2001 | US6203768 Process for the production of ultrafine particles |
| 03/14/2001 | CN1063229C Method for recovering nickel hydrometallurgically from two different nickel mattes |
| 03/08/2001 | WO2001016384A1 Sulfatisation process for metal extraction from sulfide ores |
| 02/28/2001 | EP0828578B1 Cobalt metal agglomerates, a method of producing them and their use |
| 02/22/2001 | WO2001012288A1 Nickel recovery process and compositions for use therein |
| 01/10/2001 | CN1060530C Method for recovery of cobalt salt with wbolt sulfonate slag of electrolytic zinc plant |
| 01/09/2001 | US6171564 Process for extraction of metal from an ore or concentrate containing nickel and/or cobalt |
| 01/03/2001 | EP1064412A1 Method for transforming slag derived from non-iron metallurgy |
| 12/19/2000 | US6162277 Nickel fine powder and method for preparing the same |
| 12/14/2000 | WO2000074856A1 Method for the preparation of nickel concentrate |
| 12/14/2000 | CA2371036A1 Method for the preparation of nickel concentrate |
| 12/13/2000 | EP1059134A1 Process for the production of metallic powders, powders thus prepared and compacts including these powders |
| 12/13/2000 | CN1059472C Method and apparatus for suspension smelting |
| 12/07/2000 | WO2000073520A1 Recovery of cobalt and nickel from iron-rich mattes and alloys by leaching |
| 12/06/2000 | CN1059241C Process for efficiently extracting cobalt oxide(s) from leftover containing cobalt |
| 11/23/2000 | WO2000070104A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 11/23/2000 | CA2373126A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 11/21/2000 | US6149885 Acid extraction of nickel, sodium and ammonium sulfates from crude solution containing impurities, scrubbing resulting extracted phase to remove sodium and ammonium, then treating with second crude sulfate solution to exchange impurities |
| 11/21/2000 | CA2098522C Method for beneficiating nickel sulfide concentrates and corresponding mixtures, unsuitable for smelting |
| 11/02/2000 | WO2000065114A1 FLUIDIZED BED REDUCTION OF LATERITE FINES WITH REDUCING GASES GENERATED $i(IN SITU) |
| 11/02/2000 | EP1049190A1 Method and system for recovering valuable metal from waste storage battery |
| 10/25/2000 | CN1271392A Chloride assisted hydrometallurgical extraction of nickel and cobalt fro m sulphide or laterite ores |
| 10/11/2000 | CN1057344C Chloride assited hydrometallurgical extraction of metal |
| 10/04/2000 | CN1057136C Method for preparing cubic texture nickel-base strip |
| 09/28/2000 | WO2000056943A1 Purification of cobalt solutions containing iron and manganese with oxidation mixture of s02 and oxygen |
| 09/28/2000 | WO2000056942A1 Process for recovering metal values |
| 09/28/2000 | CA2366294A1 Methods of purifying cobalt |
| 09/20/2000 | CN1267338A Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 09/14/2000 | WO2000053825A1 Method for producing cathodic nickel |
| 09/14/2000 | WO2000053820A1 Recovery of nickel and cobalt from ore |
| 09/14/2000 | WO2000053819A1 Method for dissolving a nickel- and cobalt-containing metallised material |
| 09/06/2000 | EP0832302B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt |
| 08/30/2000 | EP0910295A4 Cryoplasty device and method |
| 08/30/2000 | EP0815270B1 Atmospheric mineral leaching process |
| 08/30/2000 | CN1055971C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| 08/24/2000 | WO2000048944A1 Improved methods for leaching of ores |
| 08/24/2000 | DE19859683C1 Verfahren zur Extraktion von Anionen A process for extraction of anions |
| 08/23/2000 | EP0993510A4 Method for phytomining of nickel, cobalt and other metals from soil |