| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 07/01/1998 | CN1186524A Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| 07/01/1998 | CN1186523A Chloride assisted hydrometallurgical extraction of metal |
| 06/30/1998 | US5772955 Apparatus for suspension smelting |
| 06/24/1998 | CN1185763A Cobalt metal agglomerates, a method of producing them and their use |
| 06/18/1998 | WO1998026100A1 Recovery of nickel from bioleach solution |
| 06/17/1998 | CN1184858A Method for recovering cobalt from cobalt contg. waste catalyst used is carbonylation syntehsizing process |
| 06/16/1998 | US5766683 Nickel deposition system with a vapor recovery system |
| 06/16/1998 | US5766478 Water-soluble polymers for recovery of metal ions from aqueous streams |
| 06/16/1998 | CA2062350C Process for recovery of nickel and magnesium from a naturally occurring material |
| 06/02/1998 | US5759229 Method for recovering cobalt/manganese/bromine values from residue containing used catalyst |
| 05/28/1998 | WO1998022216A1 Production of aromatic carboxylic acids and recovery of co/mn cattalyst from ash |
| 05/13/1998 | CN1038348C Prodn. of metal from minerals |
| 04/29/1998 | CN1180109A Method for extracting nickel from nickel, iron chloride waste liquid |
| 04/21/1998 | CA2098638C Method for preventing the formation of jarosite and ammonium and alkali based double salts in solvent extraction circuits connected to acidic leaching processes |
| 04/21/1998 | CA2098521C Method for producing high-grade nickel matte and metallized sulfide matte |
| 04/14/1998 | CA2105373C Method for the disposal of nickel-cadmium or nickel-hydride cells |
| 04/09/1998 | WO1998014741A1 Method for feeding and directing reaction gas and solids into a smelting furnace and a multiadjustable burner designed for said purpose |
| 04/01/1998 | EP0832306A2 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 04/01/1998 | EP0832303A1 Chloride assisted hydrometallurgical extraction of metal |
| 04/01/1998 | EP0832302A1 Chloride assisted hydrometallurgical extraction of metal |
| 04/01/1998 | EP0815270A4 Atmospheric mineral leaching process |
| 03/18/1998 | EP0828578A1 Cobalt metal agglomerates, a method of producing them and their use |
| 03/18/1998 | EP0828577A1 Cobalt metal agglomerates, process for producing the same and their use |
| 03/18/1998 | EP0828552A1 Process for recovery of metal ions |
| 03/17/1998 | US5728854 Method for separating iron from nickel and/or cadmium from a waste containing the same |
| 03/17/1998 | US5728197 Reclamation process for tungsten carbide/cobalt using acid digestion |
| 03/05/1998 | WO1998008991A1 Method for phytomining of nickel, cobalt and other metals from soil |
| 02/11/1998 | CN1172859A Method for recovery of cobalt salt with wbolt sulfonate slag of electrolytic zinc plant |
| 01/27/1998 | US5711784 Method for phytomining of nickel, cobalt and other metals from soil |
| 01/21/1998 | EP0819771A1 Reclamation process for tungsten carbide/cobalt using oxidation and acid digestion |
| 01/07/1998 | EP0815270A1 Atmospheric mineral leaching process |
| 12/31/1997 | CN1168926A Method for recovering valuable elements from rare-earth and ferrous alloy |
| 12/30/1997 | US5702500 Integrated process for the recovery of metals and fused alumina from spent catalysts |
| 12/17/1997 | CN1167832A Method for recovering reusable elements from rare earth-nickel alloy |
| 11/20/1997 | WO1997043023A1 Process for the recovery of nickel |
| 11/05/1997 | EP0804624A1 Chloride assisted hydrometallurgical copper extraction |
| 09/09/1997 | CA2019023C Nickel foam |
| 09/03/1997 | EP0792199A1 Micron-sized nickel metal powder and a process for the preparation thereof |
| 08/20/1997 | EP0790322A1 Method for recovering reusable elements from rare earth-nickel alloy scrap |
| 08/20/1997 | EP0790321A1 Method for recovering reusable elements from rare earth-iron alloy scrap containing cobalt |
| 08/07/1997 | WO1997028288A1 Oxygen smelting of copper and/or nickel sulphide ore concentrates |
| 07/22/1997 | US5650057 Chloride assisted hydrometallurgical extraction of metal |
| 07/16/1997 | CN1154279A Ultrafine cobalt metal powder, process for production thereof and use of cobalt metal powder and of cobalt carbonate |
| 07/08/1997 | US5645708 Chloride assisted hydrometallurgical copper extraction |
| 07/02/1997 | CN1153221A Cobalt-bearing oxidized ore treatment by microwave-heat plasma |
| 06/12/1997 | WO1997020958A1 Recovery of cobalt from slag |
| 06/12/1997 | WO1997020954A1 Simplified duplex processing of nickel ores and/or concentrates for the production of ferronickels, nickel irons and stainless steels |
| 05/13/1997 | US5628817 Method for leaching nickel-copper matte employing substantially neutral leaching solutions |
| 05/07/1997 | EP0771881A1 An integrated process for the recovery of metals and fused alumina from spent catalysts |
| 05/06/1997 | US5626648 Laterite ore or sulfidic ore |
| 05/02/1997 | EP0770693A1 Ultrafine cobalt metal powder, method of preparing same and also use of cobalt metal powder and of cobalt carbonate |
| 04/09/1997 | EP0767243A1 Recovery of active components from carrier or monolythic catalysts |
| 03/25/1997 | CA2039687C Method for operation of flash smelting furnace |
| 03/06/1997 | WO1997007917A1 Process for the production of ultrafine particles |
| 03/04/1997 | US5607495 Oxygen smelting of copper or nickel sulfides |
| 02/27/1997 | WO1997007248A1 Method for recovering nickel hydrometallurgically from two different nickel mattes |
| 02/25/1997 | US5605668 Using cobalt oxide hydroxide intermediate |
| 02/13/1997 | WO1996041029A3 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 02/11/1997 | CA2071366C Pretreatment of chromium bearing metal scrap to remove chromium |
| 02/06/1997 | WO1997004139A1 METHOD FOR RECOVERING NICKEL FROM HIGH MAGNESIUM-CONTAINING Ni-Fe-Mg LATERITIC ORE |
| 02/05/1997 | EP0756515A1 Leaching in the presence of abrasive |
| 02/04/1997 | US5599514 Treating reaction liquors with alkaline earth metal hydroxide, treating precipitate formed with mineral acid to dissolve cobalt salt, separating tungstic acid |
| 02/04/1997 | US5599376 Process and equipment to reclaim reusable products from edible oil process waste streams |
| 01/21/1997 | US5595642 Pressure leaching of nickel and cobalt sulphides with chlorine under controlled redox potential conditions |
| 12/19/1996 | WO1996041029A2 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide ores |
| 12/19/1996 | WO1996041027A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/19/1996 | WO1996041026A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/19/1996 | WO1996041025A1 Process for extraction of nickel and cobalt from laterite ores |
| 12/19/1996 | CA2456772A1 Chloride assisted hydrometallurgical extraction of metal |
| 12/17/1996 | US5584908 Reduction of ammoniacal nickel carbonate solution using silver salt, dispersant, and spheroid-promoting agent |
| 12/05/1996 | WO1996038381A1 Method of biotreatment for solid materials in a nonstirred surface bioreactor |
| 12/05/1996 | WO1996038220A1 Process for recovery of metal ions |
| 12/03/1996 | CA2008167C Method and apparatus for manufacturing high-grade nickel matte |
| 11/28/1996 | WO1996037325A1 Cobalt metal agglomerates, process for producing the same and their use |
| 11/28/1996 | WO1996037324A1 Cobalt metal agglomerates, a method of producing them and their use |
| 11/28/1996 | DE19519331C1 Kobaltmetallagglomerate, Verfahren zu ihrer Herstellung sowie deren Verwendung Cobalt metal, process for their preparation and their use |
| 11/28/1996 | DE19519329C1 Kobaltmetallagglomerate, Verfahren zu ihrer Herstellung sowie deren Verwendung Cobalt metal, process for their preparation and their use |
| 11/20/1996 | EP0641394B1 Oxygen smelting |
| 11/05/1996 | US5571308 Method for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore |
| 10/15/1996 | US5565016 Method for suspension smelting |
| 09/26/1996 | WO1996029439A1 Atmospheric mineral leaching process |
| 09/18/1996 | CN1131199A Method for leaching nickel-copper matte |
| 09/17/1996 | CA2014733C Treatment of high nickel slimes |
| 07/30/1996 | CA2010357C Method for smelting reduction of ni ore |
| 07/04/1996 | WO1996020291A1 Recovery of nickel and cobalt from laterite ores |
| 07/02/1996 | CA1338426C Nitrogen / air blasts in ni-cu converters |
| 06/27/1996 | WO1996019593A1 Chloride assisted hydrometallurgical copper extraction |
| 06/11/1996 | CA1338370C Process for recovering non-ferrous metal values, especially nickel, cobalt, copper and zinc, by using melt and melt coating sulphation, from raw materials containing said metals |
| 05/23/1996 | WO1996014953A1 Micron-sized nickel metal powder and a process for the preparation thereof |
| 05/15/1996 | EP0665900B1 Production of metallic cobalt powder |
| 02/20/1996 | US5492554 Feeding partly refined nickel matte, flux, flue dust, fuel, oxygen-enriched air into suspension smelting furnace to form high grade nickel matte for hydrometallurgical processing, slag for pyrometallurgical recovery of metals |
| 01/30/1996 | US5487819 Production of metals from minerals |
| 01/09/1996 | US5482534 Precipitation of iron and arsenic as ferric arsenate and extraction |
| 12/19/1995 | CA2026967C Method of removing cobalt from chloride solution |
| 10/31/1995 | CA1337456C Method of smelting metal oxide material |
| 10/26/1995 | CA2188398A1 Leaching in the presence of abrasive |
| 10/11/1995 | CN1109914A Method for producing high-grade nickel matte from at least partly pyrometallurgically refined nickel-bearing raw materials |
| 10/11/1995 | CN1109913A A process for the extraction and separation of nickel and/or cobalt |
| 10/10/1995 | CA2011702C Method for smelting reduction of ni ore |
| 10/03/1995 | US5454856 Precipitation as sulfide or hydroxide, flocculation, gravitional or magnetic separation, and filtration |