| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
|---|
| 01/13/2009 | CA2363969C Process for the recovery of residual metal values from smelter waste slags, and from converter slags |
| 01/07/2009 | CN101338377A High-efficiency leaching process of nickel from laterite-nickel ore |
| 01/07/2009 | CN101338376A Process for comprehensively developing and utilizing nickel, cobalt, iron and magnesium from laterite-nickel ore |
| 01/07/2009 | CN101338375A Technological process for extracting nickel and cobalt and comprehensively developing iron and magnesium from laterite-nickel ore |
| 01/07/2009 | CN101338374A Process for extracting nickel and cobalt from laterite-nickel ore |
| 01/07/2009 | CN101338367A Method for enriching and purifying nickel, cobalt or copper ions |
| 12/31/2008 | CN101336306A Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 12/24/2008 | WO2008155451A1 Method for processing cobalt-containing copper concentrate |
| 12/24/2008 | EP2006399A1 Method for increasing the percentage of argillaceous and limonitic mineral solids in pulp supplied to autoclaves in pressurised acid leaching |
| 12/24/2008 | EP2004868A1 Reduction processing of metal-containing ores in the presence of microwave and rf energy |
| 12/24/2008 | CN101328548A Method for processing nickel cobalt extracted from laterite-nickel ore by chloride cycle desiliconisation ferrous process |
| 12/24/2008 | CN101328538A Method for extracting copper, cobalt and nickel from cupric oxide cobalt ore |
| 12/24/2008 | CN101328537A Process for comprehensive recovery nickel, copper, cobalt, sulfur and magnesium from high magnesium and nickle ore concentrate |
| 12/24/2008 | CN101328536A Process for comprehensive recovery nickel, copper, cobalt, sulfur and magnesium from ore |
| 12/18/2008 | WO2008128278A3 Treatment of nickel-containing solutions |
| 12/17/2008 | CN101323915A Method for extracting molybdenum and nickel by molybdenum nickel ore whole wet method |
| 12/17/2008 | CN101323909A Method of microwave selective reduction roasting-dilute acid leaching nickel oxide ore |
| 12/17/2008 | CN101323908A Method for reclaiming cobalt from manganese cobalt slag |
| 12/17/2008 | CN101323904A Method for enriching nickel iron ore concentrate from laterite type nickel ore by means of rotary kiln |
| 12/09/2008 | CA2296116C Method for phytomining of nickel, cobalt and other metals from soil |
| 12/03/2008 | CN201158689Y Nickel ion reclaimer |
| 11/26/2008 | EP1994190A1 Hematite precipitation at elevated temperature and pressure |
| 11/26/2008 | CN101311281A Green metallurgical process for integrated utilization of nickel laterite ore |
| 11/20/2008 | WO2008138039A1 Nickel recovery from a high ferrous content laterite ore |
| 11/20/2008 | WO2008138038A1 LOW Eh LEACH WITH SULFUR RECYCLE |
| 11/20/2008 | US20080282843 Process for Removal of the Catalytic Coating Material from Spent, Defective or Unused Metal Support Catalytic Converters |
| 11/19/2008 | EP1991712A1 Catalyst reprocessing |
| 11/18/2008 | CA2235429C The recovery of cobalt and/or copper from residues containing-same |
| 11/13/2008 | WO2008137022A1 Method of recovering metal values from ores |
| 11/13/2008 | CA2685371A1 Nickel-laterite process |
| 11/13/2008 | CA2685369A1 Method of recovering metal values from ores |
| 11/12/2008 | CN101302585A Method for preparing high-purity cobalt |
| 11/12/2008 | CN101302584A Method for collecting nickel and cobalt from laterite-nickel ore lixivium by using sulfide precipitation |
| 11/06/2008 | US20080271571 Process for Leaching Lateritic Ore at Atmospheric Pressure |
| 11/05/2008 | CN101298638A Method for collecting nickel and cobalt from laterite-nickel ore lixivium |
| 10/30/2008 | US20080267810 Apparatus and process for making high purity nickel |
| 10/23/2008 | WO2008124904A1 A process for nickel and cobalt recovery from an eluate by using solvent extraction, and nickel- or cobalt- bearing product obtained by said process |
| 10/22/2008 | EP1983066A1 Method of recovering molybdenum, nickel, cobalt or their mixtures from spent or regenerated catalysts |
| 10/21/2008 | US7438874 Extraction of a base metal such as Ni, Co or Zn, from a sulphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic |
| 10/21/2008 | CA2265068C Method for removal of lead ion |
| 10/21/2008 | CA2252592C Process for the recovery of nickel |
| 10/20/2008 | CA2585541A1 Apparatus and process for making high purity nickel |
| 10/16/2008 | WO2008122526A1 Cobalt recovery from cobalt catalysed hydroformylation reactions |
| 10/15/2008 | CN101285129A Production process of modem blast furnace nickel smelting for nickel concentrate |
| 10/15/2008 | CN101285128A Comprehensive reutilization method for laterite-nickel ore |
| 10/15/2008 | CN101285127A Process for abstracting nickel and cobalt by using wet method to chloridize laterite-nickel ore |
| 10/09/2008 | WO2008119695A1 Method for recovering molybdenium, nickel, cobalt or their mixtures from used or regenerated catalysts |
| 10/09/2008 | US20080245734 Contacting an aqueous solution; using hypohosphorous acid and hydroxyoxime; separation |
| 10/09/2008 | CA2682532A1 Method for recovering molybdenium, nickel, cobalt or their mixtures from used or regenerated catalysts |
| 10/08/2008 | CN101280365A Slag splashing method for nickel-copper smelting converter |
| 10/08/2008 | CN101280357A Environment-friendly acid leaching-extraction process in waste lithium battery recovery |
| 10/08/2008 | CN100423825C Hydrogen sulfide absorption and utilization device |
| 10/01/2008 | EP1727916A4 Recovery of metals from oxidised metalliferous materials |
| 10/01/2008 | CN101278064A Method for processing nickel bearing raw material in chloride-based leaching |
| 10/01/2008 | CN101275240A Processing method for anode liquor for electrowinning cobalt |
| 10/01/2008 | CN101275181A Method for removing lead in nickel mixed acid system solution |
| 09/24/2008 | EP1971697A1 Hematite precipitation |
| 09/24/2008 | EP1971696A1 Method for the precipitation of nickel |
| 09/24/2008 | CN101273146A Method for atmospheric digestion of laterite ore |
| 09/24/2008 | CN101270417A Method for extracting nickel and/or cobalt |
| 09/24/2008 | CN101270415A Method for recycling noble metal from battery slag containing Co, Ni, Mn |
| 09/24/2008 | CN100420760C 镍的回收 Nickel recovery |
| 09/24/2008 | CN100420759C Method for removal of metal from aqueous solution using lime precipitation |
| 09/17/2008 | CN100419099C A method for precipitating iron from a zinc sulphate solution as hematite |
| 09/10/2008 | CN101260463A Leaching method for alloy material obtained from magnetic copper-nickel concentrate |
| 09/03/2008 | CN101255494A Method for leaching nickel-cobalt from low-grade laterite nickel ore |
| 08/28/2008 | WO2008102240A1 Stripping agent for secondary battery electrode material and method of treating secondary battery using the stripping agent |
| 08/28/2008 | WO2008101414A1 A process for extracting metals from laterite |
| 08/28/2008 | CA2678545A1 Stripping agent for secondary battery electrode material and method of treating secondary battery using the stripping agent |
| 08/27/2008 | CN101250626A Method for extracting metallic nickel cobalt from irony nickel mine |
| 08/27/2008 | CN101250625A Method for detaching impurity copper from solution containing nickel |
| 08/26/2008 | US7416712 Extracting metals from arsenosulfidic and/or sulfidic cobalt and/or nickel ore or concentrate by conversion to cobalt monosulfide and/or nickel sulfide by sulfur or sulfur-containing arsenic compounds; sulfiding; leaching of soluble metals and rare earth elements |
| 08/26/2008 | US7416711 First leaching the low magnesium containing ore fractions such as limonite, with sulfuric acid (H2SO4), sequentially followed by the leaching of the high magnesium-containing ore fractions using H2SO4 released in iron precipitation; iron residue free jarosite solid; recover nickel and cobalt |
| 08/20/2008 | EP1587964B1 Process for nickel and cobalt extraction from laterite ores |
| 08/20/2008 | CN101245415A Abstraction impurity removal method for cobalt sulphuric leachate |
| 08/20/2008 | CN101245414A Method for extracting metal from laterite mine |
| 08/14/2008 | WO2007087698A8 Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents |
| 08/13/2008 | EP1954843A2 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 08/13/2008 | EP1716262A4 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions. |
| 08/13/2008 | CN100410399C Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid and water leaching |
| 08/13/2008 | CN100410397C Supply system for suspension smelting furnace |
| 08/06/2008 | EP1951920A1 The combined leaching process |
| 08/06/2008 | EP1769092A4 Improved leaching of base metals |
| 08/06/2008 | CN101235440A Method of comprehensively utilizing serpentine |
| 08/06/2008 | CN101235439A Method for reclaiming nickel and chromium from stainless steel sludge |
| 07/30/2008 | CN101230422A Method for enriching nickel from lateritic nickel with co-production of iron-oxide red |
| 07/24/2008 | US20080173132 Integrated hydrometallurgical and pyrometallurgical processing of base-metal sulphides |
| 07/23/2008 | CN101225470A Method for extracting nickel and cobalt from lateritic nickel by hydrochloric acid process |
| 07/16/2008 | EP1488016A4 Method and apparatus for separating metal values |
| 07/16/2008 | EP1468122B1 Method for the separation of zinc and nickel in the presence of chloride ions |
| 07/16/2008 | CN101220416A Method for recycling copper from clean melt cinder of wet-process zinc metallurgy |
| 07/16/2008 | CN100402679C Method for nickel and cobalt recovery from laterite ores |
| 07/10/2008 | WO2008080209A1 Process for recovery of nickel and cobalt from an ion-exchange resin eluate and product |
| 07/09/2008 | EP1784516A4 Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid water leaching |
| 07/09/2008 | CN101215645A Special type heat resistance steel magnesium metal smelting reducing tank |
| 07/09/2008 | CN101215634A Method for leaching nickel from nickel-carrying activated carbon by ammonium sulfate solution |
| 07/09/2008 | CN100400693C Process for manufacturing diamond using a novel method of catalysis and a new method for processing the graphite and catalyst mixture used in synthesis |
| 07/09/2008 | CN100400685C Process for producing nickel metal |
| 07/03/2008 | WO2008049177A3 Method for production of metallic cobalt from the nickel solvent extraction raffinate |
| 07/02/2008 | EP1456427B1 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |