| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 10/22/2008 | CN101289704A Treating method for high magnesium laterite nickel mine |
| 10/22/2008 | CN101289703A Process for extracting vanadium form oxygen tension pickle liquor of high ferro vanadium-containing stone coal |
| 10/22/2008 | CN101289702A Process for separating molybdenum and nickel form black shale containing molybdenum and nickel |
| 10/22/2008 | CN100427618C Process for preparing aluminium-scandium intermediate alloy from scandium-containing mineral by one-step method |
| 10/22/2008 | CN100427617C Method of comprehensive utilizing iron making blast furnace dust resources |
| 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 |
| 10/16/2008 | US20080253945 Comprises tubular reactor with continuous serpentine path; comprises pretreated feedstock including ilmenite, leueoxene, or titania slag leached with hot hydrochloric acid |
| 10/15/2008 | EP1980324A2 Method for producing a bulk concentrate for extracting precious metals |
| 10/15/2008 | CN101285195A Indirect regeneration for waste etching solution and recovery processing system for copper |
| 10/15/2008 | CN101285132A Process for clearly extracting vanadium form vanadium-containing carbonaceous shale |
| 10/15/2008 | CN101285127A Process for abstracting nickel and cobalt by using wet method to chloridize laterite-nickel ore |
| 10/15/2008 | CN101285126A Gold extraction process with low pollution and high recovery for refractory gold concentrate |
| 10/15/2008 | CN101285119A Dechlorination process from zinc electrolytic solution |
| 10/15/2008 | CN101285118A Biologic oxidation reactor for refractory auric sulfide ore |
| 10/15/2008 | CN101285117A Pressure leaching method for high silica zinc oxide ore |
| 10/15/2008 | CN100425712C Technique for extracting vanadium pentoxide by the pulp resin method |
| 10/14/2008 | US7435405 Providing sulfide ore containing sulfide minerals, and adding an antioxidant of plant polyphenol to sulfide minerals of the ore; antioxidant of pyroligneous acid and/or bamboo vinegar; preventing the elution of heavy metals from the sulfide ore, reducing the decreasein in flotation performance |
| 10/14/2008 | CA2401313C Nanostructured titania coated titanium |
| 10/09/2008 | WO2008119317A1 Melt metallurgical method for the production of metal melts, and transition metal-containing charge for use therein |
| 10/09/2008 | US20080247925 Separation and recovery of precious metals using polymer materials |
| 10/09/2008 | US20080245734 Contacting an aqueous solution; using hypohosphorous acid and hydroxyoxime; separation |
| 10/08/2008 | EP1978117A2 Method for extracting precious metals |
| 10/08/2008 | EP1978115A1 Method for recovering Rhodium |
| 10/08/2008 | CN201129474Y Rich solution distributing control device |
| 10/08/2008 | CN101280369A Method for recovering high-purity molybdenum from molybdenum-containing dead catalyst |
| 10/08/2008 | CN101280357A Environment-friendly acid leaching-extraction process in waste lithium battery recovery |
| 10/08/2008 | CN101280354A Environment-friendly alumyte synthesized smelting technical solution |
| 10/08/2008 | CN100424202C Dephosphorization method of phosphorus-containing iron ore |
| 10/08/2008 | CN100424201C Method for purifying golden and silver by fast wetting optimization |
| 10/08/2008 | CN100424200C Method for hypersonic rare earth leaching |
| 10/08/2008 | CN100424199C Method for preparing ultra-thin highly-pure terbium oxide by beneficiated gadolinium-terbium |
| 10/08/2008 | CN100424198C Method for preparing ultra-thin highly-pure dysprosium oxide by beneficiated terbium-dysprosium |
| 10/08/2008 | CN100424197C Method for preparing ultra-thin highly-pure lanthanum oxide by beneficiated lanthanum |
| 10/08/2008 | CN100423825C Hydrogen sulfide absorption and utilization device |
| 10/07/2008 | US7431782 Tantalum metal having a purity of at least about 99.995%, and an average grain size of about 150 microns or less; useful as a sputtering target and its use in electrical components such as capacitors |
| 10/07/2008 | CA2278044C Method for recovering gold from refractory carbonaceous ores |
| 10/02/2008 | WO2008117649A1 Method of recovering valuable metal from scrap containing conductive oxide |
| 10/02/2008 | US20080241024 Method for Leaching Metal Sulphide Minerals |
| 10/01/2008 | EP1975259A1 Method for separation and recovery of noble metals |
| 10/01/2008 | EP1733063A4 Production of titania |
| 10/01/2008 | EP1727916A4 Recovery of metals from oxidised metalliferous materials |
| 10/01/2008 | CN201125266Y Corroded solution regeneration and copper recycling preprocess apparatus |
| 10/01/2008 | CN101275240A Processing method for anode liquor for electrowinning cobalt |
| 10/01/2008 | CN101275187A Process for extracting vanadium by stone coal wet method |
| 10/01/2008 | CN101275184A Method for recovering rhodium |
| 10/01/2008 | CN101275181A Method for removing lead in nickel mixed acid system solution |
| 10/01/2008 | CN100422359C Optimization method of bioleaching process |
| 10/01/2008 | CN100422358C Bioleaching process of sulfide mineral ore or concentrate or tailing containing alkaline veinstone |
| 10/01/2008 | CN100422357C Method for electrolyzing vanadium slurry and extracting vanadium pentexide using film |
| 09/30/2008 | US7429364 Production of titania |
| 09/30/2008 | US7429286 Heap bioleaching and biooxidation of precious metal bearing refractory sulfide ores; improved air and fluid flow within the heap; crushing and separating the ore, forming a heap and a concentrate, biooxidation, hydrometallurgical recovery of gold, silver, platinum, or copper |
| 09/30/2008 | CA2417417C Method for recovery of copper from sulfidic ore materials using super-fine grinding and medium temperature pressure leaching |
| 09/25/2008 | WO2008116122A1 Mineral ore expanion using microwave energy |
| 09/25/2008 | US20080233724 Recycling of electrochemical-mechanical planarization (ecmp) slurries/electrolytes |
| 09/25/2008 | US20080233042 Production of lithium compounds directly from lithium containing brines |
| 09/24/2008 | EP1971697A1 Hematite precipitation |
| 09/24/2008 | EP1971696A1 Method for the precipitation of nickel |
| 09/24/2008 | EP1971695A1 Recovery of solid magnesium sulfate hydrate |
| 09/24/2008 | EP1971694A1 Magnesium oxide recovery |
| 09/24/2008 | CN201122648Y Vacuum distillation commercial installation especially for waste nickel-cadmium battery recovery |
| 09/24/2008 | CN201120257Y Copper-solvent device of fluidized bed |
| 09/24/2008 | CN101273146A Method for atmospheric digestion of laterite ore |
| 09/24/2008 | CN101270419A Preparing technique for extracting molybdenum from chemical fertilizer catalyst |
| 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 | CN101270411A Method for recycling copper from waste circuit board |
| 09/24/2008 | CN100420761C Method for extracting rhenium from eluate of flue ash generated by baking enriched ore of molybdenum |
| 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 | EP1716261A4 Aluminium production process |
| 09/17/2008 | EP1191113B1 Metal-collecting apparatus and method for elution and recovery of metal from metal-collecting material |
| 09/17/2008 | CN101265524A Method for extracting V2O5 from stone coal |
| 09/17/2008 | CN101265523A Technique for extracting vanadium pentoxide by stone coal ore rotary kiln calcium-process roasting |
| 09/17/2008 | CN101265522A Technique for extracting vanadium pentoxide by tunnel kiln calcification roasting |
| 09/17/2008 | CN101265519A Method for reclaiming aluminum from red mud by biochemical process |
| 09/17/2008 | CN100419101C Recovery of precious metals from waste catalysts |
| 09/17/2008 | CN100419099C A method for precipitating iron from a zinc sulphate solution as hematite |
| 09/17/2008 | CN100419098C A solvent extraction process |
| 09/16/2008 | CA2427221C Process and intermediates for preparing anti-cancer compounds |
| 09/11/2008 | US20080216606 Grinding to uniform particle size; heating; pressurization;; extraction from ores, concentrates |
| 09/10/2008 | EP1966401A1 Method for recovering rare metals in a zinc leaching process |
| 09/10/2008 | EP1966400A1 Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts |
| 09/10/2008 | CN101260471A Complete set of cleaning producing technique for extracting soluble manganese from manganese residue by using anode liquor |
| 09/10/2008 | CN101260470A Technique for processing low-concentration vanadium-containing pickle liquor |
| 09/10/2008 | CN101260469A Method for reclaiming and purifying platinum and rhodium from waste material containing platinum and rhodium |
| 09/10/2008 | CN101260467A Method for purifying and enriching low-concentration vanadium-containing water solution |
| 09/10/2008 | CN101260466A Pretreatment method for organic extracting agent and application thereof |
| 09/10/2008 | CN101260465A Method for improving biological leaching speed of metallic sulphide ore or concentrate by using leaching liquid containing separated microorganism to inoculate continuously |
| 09/10/2008 | CN101260464A Stone coal vanadium-extracting ore decomposition method |
| 09/10/2008 | CN101260463A Leaching method for alloy material obtained from magnetic copper-nickel concentrate |
| 09/10/2008 | CN101260462A Stone coal vanadium-extracting leaching technique |
| 09/10/2008 | CN101260461A Decomposition method for molybdenite by wet process |
| 09/10/2008 | CN100417734C No-saponifying pre-grouped extraction and separation process of ion adsorbing RE mineral |
| 09/10/2008 | CN100417733C Oxidative leach process |
| 09/09/2008 | US7422621 Pyrite is removed from leaching residue by pyrolyzing the residue at 550 degrees C. or higher in a non-oxidative atmosphere to produce calcined ore containing pyrrhotite, precious metals and gangue; and re-leaching the calcined ore in an acidic, aqueous solution |
| 09/03/2008 | EP1964936A1 Process for recovering noble metals from electric and electronic wastes |
| 09/03/2008 | CN101258251A Method for processing ore to minimize the production of acidic wastes |
| 09/03/2008 | CN101255504A Production technique for extracting gallium from coal ash and coal gangue |