| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 08/05/2009 | CN101497943A Method for processing cobalt waste slag and recycling cobalt by sodium persulfate oxidation treatment |
| 08/04/2009 | CA2353875C Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 08/04/2009 | CA2224218C Method for recovering nickel from high magnesium-containing ni-fe-mg lateritic ore |
| 07/29/2009 | EP1794331A4 Production of ferro-nickel or nickel matte by a combined hydrometallurgical and pyrometallurgical process |
| 07/29/2009 | EP1740331B1 Method and arrangement for crystal growth from fused metals or fused solutions |
| 07/23/2009 | WO2009089613A1 Liquid and solid effluent treatment process |
| 07/23/2009 | CA2707830A1 Liquid and solid effluent treatment process |
| 07/22/2009 | CN100516254C Process for producing high-nickel material using blast furnace |
| 07/21/2009 | US7563421 Hydrometallurgical process of nickel oxide ore |
| 07/21/2009 | CA2366095C Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
| 07/14/2009 | US7559972 Nickel and cobalt recovery; separating ore into low magnesium limonite and high magnesium saprolite; high pressure sulfuric acid leaching of limonite; adding saprolite to primary slurry to precipitate iron as goethite or hematite; ambient leaching; low alkali solutions inhibit jarosite; hydrometallurgy |
| 07/02/2009 | WO2009079716A1 Laterite heap leaching with ferrous lixiviants |
| 07/02/2009 | WO2009079715A1 Selectively leaching cobalt from lateritic ores |
| 07/02/2009 | US20090165598 Novel phosphinic acids and their sulfur derivatives and methods for their preparation |
| 06/24/2009 | CN101466855A Nickel sulphide precipitation process |
| 06/17/2009 | EP2069433A1 An ion exchange resin and a process for the use thereof |
| 06/17/2009 | CN201258352Y Sensing smelting furnace of nickel renewable resource intermediate alloy |
| 06/17/2009 | CN101457303A Smelting method of laterite ore |
| 06/17/2009 | CN101457302A Method for preparing low nickel matte |
| 06/17/2009 | CN101457301A Technique for extracting cobalt from alpha-nitroso beta-naphthyl hydroxide cobalt slag |
| 06/17/2009 | CN100500893C Copper cobalt alloy separation and recovery method |
| 06/10/2009 | CN100497680C New method for extracting nickel from enriched ore of nickel sulfide |
| 06/09/2009 | US7544227 Recovering metals trapped in ores and slags by reacting laterites, magnetites or iron oxides with carbon, chloride and water using microwave radiation as the primary energy source; the water, carbon and chloride can be recycled |
| 06/03/2009 | EP2064358A1 Process for recovering group vi-b metals from spent catalysts |
| 05/27/2009 | CN100491552C Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 05/26/2009 | US7537741 Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| 05/20/2009 | EP2059618A1 Process for the hydrometallurgical treatment of a lateritic nickel/cobalt ore and process for producing nickel and/or cobalt intermediate concentrates or commercial products using it |
| 05/20/2009 | CN100489129C Method of preparing cobalt oxide by microwave calcining cobalt salt and it powder material microwave calcining furnace |
| 05/19/2009 | US7534407 Recovery of nickel |
| 05/13/2009 | EP2058410A1 Process for treating aqueous lateritic-ore pulps in pressurized acid technology |
| 05/06/2009 | EP2054534A1 Improved hydrometallurgical method for the extraction of nickel from laterite ores |
| 05/06/2009 | CN101423897A Method for extracting nickel oxide from lateritic nickel |
| 05/06/2009 | CN101423894A Method for improving nickel cobalt leaching rate from lateritic nickel at low cost |
| 05/06/2009 | CN100485091C Separation method of nickel ion in iron trichloride solution by crystallization and extraction method |
| 04/30/2009 | WO2009052580A1 Production of nickel |
| 04/29/2009 | EP1805335A4 Process for preparing nickel loaded organic extractant solution |
| 04/29/2009 | CN101418379A Method for extracting nickel and cobalt by enclosed leaching nickel oxide mine |
| 04/29/2009 | CN101418378A Method for adding additive agent in reducing roasting process of laterite nickle mine |
| 04/29/2009 | CN100482818C Method for recovering micro-nickel and cobalt from manganese ore |
| 04/29/2009 | CN100482815C Sulfur slag vacuum volatilizing process for enriching noble metal |
| 04/22/2009 | CN101415848A Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 04/22/2009 | CN101413053A Additive for strengthening reduction and separation of laterite-nickel ore |
| 04/16/2009 | US20090095127 Process and system for material reclamation and recycling |
| 04/15/2009 | EP2046999A2 Method and apparatus for reducing metalliferous material to a reduction product |
| 04/15/2009 | EP1929056A4 Process for leaching lateritic ore at atmospheric pressure |
| 04/15/2009 | EP1392444A4 Process for sulphide concentration |
| 04/15/2009 | CN100478461C Combined bottom rotating furnace-electric furnace process for treating red mud nickel ore to produce ferronickel |
| 04/08/2009 | CN201217678Y Smelting and cleaning treatment furnace for renewable resources intermediate alloy of nickel |
| 04/08/2009 | CN101403043A Method for producing ferronickel granule with direct reduction of laterite nickel mine with rotary kiln |
| 04/07/2009 | CA2230443C Process for the production of ultrafine particles |
| 04/02/2009 | WO2009039643A1 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture |
| 04/02/2009 | CA2700959A1 Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture |
| 04/01/2009 | EP1812611A4 Method for producing fine, low bulk density, metallic nickel powder |
| 04/01/2009 | CA2599490A1 Producing precious metals, particularly the platinum group metals |
| 03/25/2009 | EP2038438A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 03/25/2009 | EP2038437A1 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 03/25/2009 | CN101395288A Catalyst reprocessing |
| 03/25/2009 | CN101395286A Reduction processing of metal-containing ores in the presence of microwave and RF energy |
| 03/25/2009 | CN101392331A Smelting technique for processing nickel ore by rotary kiln |
| 03/25/2009 | CN101392330A Method for jointly producing ferronickel in tunnel furnace-blast furnace from lateritic nickel |
| 03/25/2009 | CN101392329A Nickel oxide ore dressing process |
| 03/25/2009 | CN101392321A Method for treating nickel-containing laterite by microwave reducing roasting-hematite precipitation conversion method |
| 03/25/2009 | CN101392320A Method for treating nickel-containing laterite by microwave reducing roasting-goethite precipitation conversion method |
| 03/25/2009 | CN100471967C Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 03/19/2009 | WO2009033227A1 Limonite and saprolite heap leach process |
| 03/12/2009 | US20090068076 Nickel sulphide precipitation process |
| 03/11/2009 | CN101383440A Method for recycling and preparing superfine nickel powder from nickel-hydrogen cell |
| 03/11/2009 | CN101381817A Method for directly recovering and producing electrowinning cobalt from waste and old lithium ionic cell |
| 03/11/2009 | CN101381816A Method and equipment for recovering cadmium and nickel from waste and old nickel-cadmium battery and preparing metal cadmium ingot and superfine nickel powder |
| 03/05/2009 | WO2009026694A1 System and method for extracting base metal values from oxide ores |
| 03/05/2009 | WO2009026693A1 Hydrometallurgical process for the separate recovery of nickel and cobalt using ion exchange resins |
| 03/05/2009 | WO2009026682A1 Resin-in-leach process to recover nickel and/or cobalt in ore leaching pulps |
| 03/05/2009 | US20090056502 Hydrometallurgical process for recovery of nickel and cobalt |
| 03/05/2009 | CA2697789A1 System and method for extracting base metal values from oxide ores |
| 03/05/2009 | CA2697777A1 Resin-in-leach process to recover nickel and/or cobalt in ore leaching pulps |
| 03/04/2009 | CN101376927A Heat accumulation type rotary hearth furnace-wet separation-buried arc furnace nickel ore smelting method |
| 03/04/2009 | CN101376926A Pre-classification nickel extraction processing method for low grade nickel oxide |
| 02/25/2009 | EP1769095A4 Recovery of nickel |
| 02/24/2009 | CA2295066C Selective precipitation of nickel and cobalt |
| 02/19/2009 | US20090047198 high-temperature oxidation of a Co Mo alumina catalyst with O2 increases the recovery of Co by at least 50% and Mo by about 10%, time for oxidation is reduced from 24 hours to 0.5 hour and the time to recover Co and Mo during subsequent chlorination and sublimation can be reduced from 3 to 2 hours |
| 02/18/2009 | CN101368235A Pyrogenic pretreatment method for low-grade laterite nickel mine |
| 02/18/2009 | CN101368232A Method for recycling valuable metal from cobalt-copper-iron alloy |
| 02/12/2009 | WO2009018619A1 Atmospheric acid leach process for laterites |
| 02/12/2009 | US20090038441 dewaxing the Fischer-Tropsch catalyst containing coblat on alumina support using a pressurised near-critical or supercritical fluid selected from alkane, alcohol (isopropanol) or water, leaching alumina with NaOH to form sodium aluminate and cobalt with HNO3 to form cobalt nitrate for reuse |
| 02/04/2009 | CN101358813A Discharging device for blast furnace |
| 02/04/2009 | CN101358810A Blast furnace |
| 02/04/2009 | CN101358809A Blast furnace |
| 02/04/2009 | CN101358808A Blast furnace |
| 02/04/2009 | CN101358807A Blast furnace |
| 02/04/2009 | CN101358297A Method for preparing high nickel matte |
| 02/04/2009 | CN101358296A Method for preparing high nickel matte |
| 02/04/2009 | CN101358295A Method for smelting silicium magnesium laterite ore |
| 02/04/2009 | CN101358294A Method for preparing high nickel matte |
| 02/04/2009 | CN101358293A Feeding method for smelting silicium magnesium laterite ore |
| 02/04/2009 | CN101358292A Feeding method for preparing high nickel matte |
| 02/04/2009 | CN101358291A Feedstock for preparing low nickel matte |
| 02/04/2009 | CN101358281A Lateritic ore preprocess method |
| 01/28/2009 | CN101356292A Combined leaching process |
| 01/27/2009 | CA2401763C Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutions |
| 01/15/2009 | US20090013829 Process for the recovery of value metals from base metal sulfide ores |