| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 12/17/2002 | CA2215963C Atmospheric mineral leaching process |
| 12/04/2002 | CN1382814A Smelting method for separating Cu, Zn and Co from each other |
| 12/03/2002 | US6488782 Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-based alloys |
| 12/03/2002 | CA2376883C Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 11/27/2002 | EP1259652A1 Process and apparatus for recovery of cyanide and metals |
| 11/21/2002 | US20020174451 Recovering metals from soil |
| 11/21/2002 | US20020170386 Large diameter ingots of nickel base alloys |
| 11/14/2002 | US20020168309 Method for recovering catalytic metals |
| 11/07/2002 | US20020162417 Producing cobalt carbonyl and nickel carbonyl and iron carbonyl from metallic species mixture; separating cobalt carbonyl; treating cobalt carbonyl with nitric oxide and carbon monoxide to form complex; decomposition |
| 10/30/2002 | EP1252348A1 Iron-nickel alloy production |
| 10/30/2002 | EP1252345A1 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 10/30/2002 | CN1376804A Flash smelting technology for copper or nickel sulfide ore concentrate |
| 10/30/2002 | CN1376803A Recovery method for catalytic metal |
| 10/24/2002 | WO2002083316A1 Process for sulphide concentration |
| 10/24/2002 | CA2444143A1 Process for sulphide concentration |
| 10/15/2002 | US6464750 Method of preparing metal powders, metal powders prepared in this way and compacts that include these powders |
| 09/26/2002 | WO2002036838A3 Direct atmospheric leaching of highly-serpentinized saprolitic nickel laterite ores with sulphuric acid |
| 09/25/2002 | CN1370828A Intermediate thermophilic acidophilic thiobacillu strin and its application |
| 09/24/2002 | US6455019 Process for the extraction of copper from a sulphide copper ore or concentrate |
| 09/19/2002 | WO2002072897A1 Method for producing large diameter ingots of nickel base alloys |
| 09/19/2002 | CA2771264A1 Method for producing large diameter ingots of nickel base alloys |
| 09/12/2002 | US20020124691 Mechanically separate into cathode and anode material |
| 09/11/2002 | EP1064412B1 Method for transforming slag derived from non-iron metallurgy |
| 09/04/2002 | EP1235942A1 Nickel powder desulfurisation |
| 08/29/2002 | US20020117025 High purity cobalt, method of manufacturing thereof, and high purity cobalt targets |
| 08/28/2002 | EP1234062A2 Recovery of metals from ore by bioleaching with sulfur addition |
| 08/22/2002 | WO2002018663A3 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
| 08/21/2002 | EP1232290A1 Method for leaching nickeliferous oxide ores of high and low magnesium laterites |
| 08/14/2002 | EP1229977A1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 08/08/2002 | US20020104407 Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-based alloys |
| 08/07/2002 | EP1228259A1 Resin-in-pulp method for recovery of nickel and cobalt from oxidic ore leach slurry |
| 08/07/2002 | EP1228257A1 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 08/06/2002 | US6428604 Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate |
| 08/06/2002 | US6428601 Cobalt recovery process |
| 08/01/2002 | US20020100345 Continuous process for transforming material, yielding controlled composition products and apparatus apt to carry out such process |
| 07/24/2002 | EP1224972A1 A method for recovering catalytic metals from a colloidal solution |
| 07/24/2002 | EP1224031A1 Method for the preparation of nickel concentrate |
| 07/18/2002 | WO2002055746A1 Method and apparatus for feeding solid material and oxidizing gas into suspension smelting furnace |
| 07/09/2002 | US6416564 Casting, annealing, melting |
| 07/09/2002 | CA2162626C Process for leaching nickel-copper matte |
| 06/27/2002 | WO2002050321A2 Acid leaching of nickel laterite ores for the extraction of their nickel and cobalt values |
| 06/25/2002 | US6409979 Selective precipitation of nickel and cobalt |
| 06/25/2002 | CA2236362C Method of solvent extraction of nickel sulfate |
| 06/25/2002 | CA2236125C Method for purifying nickel sulfate |
| 06/25/2002 | CA2147760C Production of metallic cobalt powder |
| 06/13/2002 | WO2002046481A1 Method for the hydrolytic precitpitation of iron |
| 06/05/2002 | CN1085953C Cobalt metal agglomerates, a method of producing them and their use |
| 05/30/2002 | WO2002002848A3 Method and apparatus for processing metals, and the metals so produced |
| 05/22/2002 | EP1206584A2 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 05/22/2002 | CN1350596A Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 05/21/2002 | US6391089 Acid leaching of nickel laterite ores for the extraction of their nickel and cobalt values |
| 05/21/2002 | US6391081 Metal purification method and metal refinement method |
| 05/15/2002 | CN1348999A Copper-nickel slag treating method |
| 05/14/2002 | US6387240 Method for the removal of sulfur in the nickel leaching process |
| 05/14/2002 | US6387239 Contacting ore with microorganism which oxidizes sulfur; leaching; separation |
| 05/10/2002 | WO2002036838A2 Direct atmospheric leaching of highly-serpentinized saprolitic nickel laterite ores with sulphuric acid |
| 05/07/2002 | US6383460 Subjecting the concentrate containing nickel and cobalt hydroxide to a leaching stage with an ammonium solution to produce a leach solution containing nickel or cobalt values and a residue, and controlling the concentration of metals |
| 04/30/2002 | US6379637 Direct atmospheric leaching of highly-serpentinized saprolitic nickel laterite ores with sulphuric acid |
| 04/30/2002 | US6379636 Method for leaching nickeliferous laterite ores |
| 04/30/2002 | US6379426 Reducing iron oxide, oxidation and recovering iron oxides |
| 04/18/2002 | WO2001075184A3 Heap leaching of nickel containing ore with sulfuric acid |
| 04/11/2002 | US20020041840 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 04/10/2002 | EP1194602A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 04/03/2002 | CN1082031C Method of biotreatment for solid materials in nonstirred surface bioreactor |
| 03/28/2002 | WO2002024966A1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 03/27/2002 | EP1190106A1 Fluidized bed reduction of laterite fines with reducing gases generated "in situ" |
| 03/26/2002 | CA2356050C Process for the solvent extraction of nickel and cobalt values in the presence of magnesium ions from a solution |
| 03/26/2002 | CA2356048C Process for the recovery of nickel and/or cobalt from a concentrate |
| 03/14/2002 | WO2002020451A1 Recovery of metals by incineration of metal containing basic ion exchance resin |
| 03/14/2002 | US20020032438 Cryoplasty device and method |
| 03/14/2002 | US20020031463 Adding solid or freshly slurried caustic calcined magnesium oxide to the solution to precipitate nickel and cobalt and minor amount of manganese in solution, maintaining magnesium oxide in solution for prefered time, separating precipitates |
| 03/07/2002 | WO2002018663A2 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
| 03/06/2002 | CN1080155C Cobalt metal agglomerates, process for producing the same and their use |
| 02/28/2002 | WO2001073144A3 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 02/26/2002 | US6350420 Hydrometallurgy process with aqueous pulps of laterite, nickeliferous oxide or cobaltiferous oxide |
| 02/14/2002 | WO2002012577A1 Method for reducing the oxygen and oxide content in cobalt to procuce cobalt sputtering targets |
| 02/12/2002 | US6346137 Reacting soluble cobalt salt with solution/suspension of ammonium, alkali or alkaline earth carbonate or bicarbonate at specified ph to precipitate cobalt carbonate, separating, washing with water to required purity, drying, reducing |
| 01/31/2002 | WO2002008477A1 Method for recovering nickel and cobalt from laterite ores |
| 01/31/2002 | US20020012621 Process for the recovery of nickel and / or cobalt from a concentrate |
| 01/17/2002 | US20020006370 Using sulfuric acid; high temperature, high pressure |
| 01/16/2002 | CN1331760A Method for extracting anions of IVB to VIII metals using alkyl-substituted 1,3-diaminopropanes |
| 01/10/2002 | WO2002002848A2 Method and apparatus for processing metals, and the metals so produced |
| 01/10/2002 | US20020004023 Copper sulfide ore is pressure oxidized in presence of halide and sulfate in acid solution producing copper sulfate which is then solvent extracted |
| 01/10/2002 | DE10027796A1 Verfahren zum Brikettieren von Nickeloxid-Pulver, sowie Nickeloxid-Brikett A method for briquetting of nickel powder and nickel briquettes |
| 01/09/2002 | EP1012351B1 Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 01/08/2002 | CA2221940C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 01/03/2002 | WO2002103064A1 Method for producing granular metal |
| 01/03/2002 | WO2001036693B1 Recovery of metals from ore by bioleaching with sulfur addition |
| 12/27/2001 | US20010054331 Process of recovering valuable metal |
| 12/20/2001 | WO2001096621A1 Solvent extraction of impurities from concentrated metal sulphate solutions |
| 12/20/2001 | CA2444104A1 Solvent extraction of impurities from concentrated metal sulphate solutions |
| 12/13/2001 | WO2001094652A1 Method for producing briquettes from nickel-oxide powder and a nickel-oxide briquette |
| 12/05/2001 | EP1159461A1 Recovery of nickel and cobalt from ore |
| 11/22/2001 | WO2001032944B1 Method for leaching nickeliferous oxide ores of high and low magnesium laterites |
| 11/15/2001 | WO2001036693A3 Recovery of metals from ore by bioleaching with sulfur addition |
| 11/14/2001 | EP0918094B1 Hydrometallurgical process for the recovery of nickel and cobalt by ammoniacal leaching |
| 11/06/2001 | US6312500 Heap leaching of nickel containing ore |
| 10/17/2001 | EP1144699A1 Method for extracting anions of ivb to viii metals using alkyl-substituted 1,3-diaminopropanes |
| 10/17/2001 | CN1317588A Electromagnetic filter method for purifying molten aluminium and aluminium alloy |
| 10/11/2001 | WO2001075184A2 Heap leaching of nickel containing ore with sulfuric acid |