| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 09/05/2012 | CN102656287A Treatment of titanium ores |
| 09/05/2012 | CN102140587B Method for anti-adhesion nitrogen increase in the process of producing vanadium nitride |
| 09/05/2012 | CN102071313B Method for treating tungsten-containing and molybdenum-containing slag produced in ammonium paratungstate production process |
| 09/05/2012 | CN102062527B Decarburization roasting device of vanadium extraction by vanadium containing stone coal and fire, and processing thereof |
| 09/05/2012 | CN102051486B Method for preparing low-phosphorus vanadium liquid by using wastewater subjected to vanadium precipitation |
| 09/05/2012 | CN101962191B Method for lowering white carbon black extracting cost in stone coal-calcining alkali-leaching vanadium extraction and thermally-decarbonized stone coal water-cooling device used thereby |
| 09/05/2012 | CN101935755B Two-stage leaching method for vanadium in vanadium-containing ore |
| 09/05/2012 | CN101774018B Method for the production of niobium and tantalum powder |
| 08/30/2012 | WO2012116003A1 Hydromethanation of a carbonaceous feedstock with nickel recovery |
| 08/30/2012 | WO2012115272A1 Melting furnace for smelting metal |
| 08/30/2012 | US20120219476 Methods Of Metal Extraction Using Oximes |
| 08/30/2012 | US20120219475 Compositions and Methods of Using a Ketoxime in a Metal Solvent Extraction Reagent |
| 08/30/2012 | US20120219474 Metal Solvent Extraction Reagents And Use Thereof |
| 08/30/2012 | CA2827916A1 Hydromethanation of a carbonaceous feedstock with nickel recovery |
| 08/29/2012 | CN202406314U Electric heater for maintaining rated temperature in preparing pure titanium sponge in reduction and distillation method |
| 08/29/2012 | CN202403522U Rotary kiln air feed device |
| 08/29/2012 | CN102649995A Method for transforming wolframite into scheelite |
| 08/29/2012 | CN102127634B Molybdenite concentrate suspended-state roasting process and equipment |
| 08/29/2012 | CN101994012B Method for producing titanium dioxide by using titanium-containing blast furnace slag |
| 08/29/2012 | CN101974688B Method for separating chromium ions and iron ions in multicomponent solution |
| 08/28/2012 | CA2529249C Extraction process for reactive metal oxides |
| 08/22/2012 | EP2064358B1 Process for recovering group vi-b metals from spent catalysts |
| 08/22/2012 | CN202391904U Novel titanium and titanium alloy condensing screen locking device |
| 08/22/2012 | CN202390512U Novel titanium and titanium alloy briquetting batch |
| 08/22/2012 | CN102643998A Method for processing molybdenite |
| 08/22/2012 | CN102643977A Molten liquid phase roasting method of chromite |
| 08/22/2012 | CN102642970A Method for recycling waste water with high salinity by extracting vanadium from vanadium slag |
| 08/22/2012 | CN101876004B Method for recycling rare metal molybdenum from mineral dressing tailings of molybdenum |
| 08/16/2012 | WO2012065191A3 Method for recovering molybdenum, vanadium, nickel, cobalt and aluminum from spent catalysts |
| 08/16/2012 | US20120204681 Molybdenum refining method |
| 08/15/2012 | CN202380064U Flexible connection pipeline of distillation vacuum system for preparing sponge titanium |
| 08/15/2012 | CN102634675A Method for treating copper-molybdenum mixed ores |
| 08/15/2012 | CN102634673A Method for deeply removing iron ions from chromium-containing waste residue pickle liquor |
| 08/15/2012 | CN102634670A Treating method for wastes in tungsten molybdenum complexing extraction technology |
| 08/15/2012 | CN102634669A Method for preparing high-purity tantalum ingot by utilizing waste tantalum block |
| 08/15/2012 | CN102634658A Leaching method for associated copper, molybdenum and nickel in coal mine containing scherbinaite |
| 08/15/2012 | CN102175077B Apparatus for melting metal by electron beams and process for producing high-melting metal ingot using this apparatus |
| 08/08/2012 | CN202369622U Roasting device for refining vanadium pentoxide |
| 08/08/2012 | CN102628104A Production process for extracting high-purity rare earth and zirconium compound from solid waste |
| 08/08/2012 | CN102628101A Method of extracting vanadium from acid leaching solution of stone coal vanadium ore |
| 08/08/2012 | CN102628098A Boiler with decarbonization and roasting processes for refining vanadium pentoxide |
| 08/08/2012 | CN102628092A Smelting process for vanadium titano-magnetite |
| 08/08/2012 | CN102108440B Method for extracting molybdenum from nickel-molybdenum mineral alkali leaching solution |
| 08/08/2012 | CN101665871B Method for producing titanium carbide slag |
| 08/07/2012 | CA2535978C Thermal and electrochemical process for metal production |
| 08/02/2012 | DE102012001801A1 Recovering molybdenum and cobalt for preparing composite oxide, by blending composite oxide comprising molybdenum and cobalt with ceramic compact and aqueous extraction solution, and extracting molybdenum and cobalt into aqueous phase |
| 08/01/2012 | EP1999285B1 Apparatus and methods for the production of metal compounds |
| 08/01/2012 | EP1899271B1 Process for the extraction of specific transition metals |
| 08/01/2012 | CN102625855A A multi-stage system for reaction and melt coalescence and separation |
| 08/01/2012 | CN102618733A Smelting recovery method for pure titanium waste blocks |
| 08/01/2012 | CN102618726A Treatment method for detoxifying and recycling chromium slag |
| 07/31/2012 | US8231744 Tantalum and niobium billets and methods of producing the same |
| 07/25/2012 | CN202347064U Shaft furnace type oxidization and sodium treatment roasting device |
| 07/25/2012 | CN1713943B Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 07/25/2012 | CN102605182A Method for Production 70# ferrotitanium with high titanium by perrin process |
| 07/25/2012 | CN102605179A Acid leaching equipment for vanadium-containing shales |
| 07/25/2012 | CN102605171A Decarbonizing and roasting device for refining vanadium pentoxide |
| 07/25/2012 | CN102605168A Method for extracting limonite and ferric oxide titanium dioxide |
| 07/25/2012 | CN102181626B Beneficiating method for ilmenite |
| 07/25/2012 | CN102021327B Method for decomposing scheelite by using phosphoric acid |
| 07/25/2012 | CN101914673B Sodium-translated roasting method of vanadium minerals |
| 07/25/2012 | CN101830649B Treatment method for use in production of cement filler by using alkali leaching slag from vanadium stone coal alkali leaching |
| 07/25/2012 | CN101776391B Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal |
| 07/19/2012 | WO2012014174A3 Process for manufacturing physical assets for civil and/or industrial facilities on moon, mars and/or asteroid |
| 07/18/2012 | EP2475792A1 Treatment of minerals |
| 07/18/2012 | CN202339119U 一种用于镁法还原海绵锆的测温装置 A magnesium reduction of zirconium sponge method for temperature measurement device |
| 07/18/2012 | CN202337817U Device for extracting waste acid from large-scale titanium reduction reactor |
| 07/18/2012 | CN102597280A Method of molybdenum refining |
| 07/18/2012 | CN102586632A Method for comprehensively recovering tungsten and fluorine from minerals |
| 07/18/2012 | CN102586631A Magnesium chloride downward discharge type discharge device for production of sponge titanium |
| 07/18/2012 | CN102586630A Argon purification device for sponge titanium production |
| 07/18/2012 | CN102586629A Recycling preparation method for producing titanium sponge and co-producing potassium cryolite with potassium fluotitanate as intermediate raw material |
| 07/18/2012 | CN102586628A Cyclic co-production method of sponge titanium and sodium fluoroaluminate with sodium fluorotitanate as intermediate material |
| 07/18/2012 | CN102586614A Method for recycling stone coal navajoite waste slag |
| 07/18/2012 | CN102586613A Method for recycling vanadium from vanadium-containing steel slag |
| 07/18/2012 | CN102586612A Method for recovering vanadium and chromium from vanadium and chromium-containing slag |
| 07/18/2012 | CN102586610A Cleaner production process for synchronously extracting vanadium and aluminum from aluminothermic vanadium iron slag |
| 07/18/2012 | CN102586606A Method for recovering rare earth, vanadium and nickel from waste FCC/ROC catalytic agent containing vanadium and nickel |
| 07/18/2012 | CN102586598A Method for decomposing tantalum-niobium compound |
| 07/18/2012 | CN102586595A Acid leaching method of vanadium-containing shale |
| 07/18/2012 | CN102586588A Roasting method for refining vanadium pentoxide |
| 07/18/2012 | CN102583402A Method for simultaneously extracting vanadium and silicon from stone coal |
| 07/18/2012 | CN101985697B Electric furnace charging process for high-titanium blast furnace slag carbonization |
| 07/12/2012 | WO2012093170A1 Dissolution and recovery of at least one element nb or ta and of at least one other element u or rare earth elements from ores and concentrates |
| 07/12/2012 | WO2012066298A3 Electrolysis apparatus and method |
| 07/12/2012 | US20120175307 Multi-layered macromolecules and methods for their use |
| 07/12/2012 | CA2823620A1 Dissolution and recovery of at least one element nb or ta and of at least one other element u or rare earth elements from ores and concentrates |
| 07/11/2012 | EP2474633A1 Titaniumrich hydrochloric acid leaching residue use thereof and preparation method of titanium dioxide |
| 07/11/2012 | EP2473642A1 Titanium bearing material flow control in the manufacture of titanium tetrachloride with silica content monitoring of the titanium product |
| 07/11/2012 | EP2473641A1 Titanium bearing material flow control in the manufacture of titanium tetrachloride using a combination of feedback and feed forward responses |
| 07/11/2012 | EP2473568A1 Titanium bearing material flow control in the manufacture of titanium tetrachloride with silica content monitoring of the titanium product using feedback and feed forward responses |
| 07/11/2012 | EP2473567A1 Process for controlling the flow of titanium bearing material into the fluidized bed reactor in the manufacture of titanium tetrachloride |
| 07/11/2012 | CN202322959U 母丝成型装置 Mother wire forming device |
| 07/11/2012 | CN202317029U 一种钨粉还原装置 One of the tungsten powder reduction device |
| 07/11/2012 | CN202315408U 一种萃取澄清器 An extract clarifier |
| 07/11/2012 | CN102575315A Process for multi metal separation from raw materials and system for use |
| 07/11/2012 | CN102564115A Rotary kiln air supply device |
| 07/11/2012 | CN102560155A Method for extracting vanadium from stone coal vanadium ore by using calcium compound additive |
| 07/11/2012 | CN102560154A Dehydrogenation modifier-molybdenum-based alloy additive for refining zirconium |
| 07/11/2012 | CN102560153A Methods for preparing sponge titanium by aluminothermic reduction of potassium fluotitanate |