| Patents for C22B 34 - Obtaining refractory metals (6,435) |
|---|
| 05/15/2013 | CN103103360A Method for recovering copper, tungsten and molybdenum by use of APT (ammonium paratungstate) waste slag |
| 05/15/2013 | CN103103359A Method for regenerating APT (ammonium paratungstate) by use of APT waste low-grade tungsten slag |
| 05/15/2013 | CN103103358A Method for recovering metal by use of APT (ammonium paratungstate) waste slag |
| 05/15/2013 | CN103103343A Thermal-insulating, oxidizing and cooling device used in vanadium extraction from stone coal and using method of device |
| 05/15/2013 | CN103100720A Preparation method for high-purity low-gas chromium powder |
| 05/15/2013 | CN102560105B Elution leaching method for recovering vanadium from stone coal vanadium ore |
| 05/15/2013 | CN102212689B Method for removing chromium and recycling nickel by oxidizing nickel/chromium-containing aqueous solution |
| 05/15/2013 | CN102191388B Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
| 05/08/2013 | CN202925046U Separate container for producing titanium-enriched material |
| 05/08/2013 | CN103088217A Method for recovering tungsten component from selective catalytic reduction denitrification catalyst |
| 05/08/2013 | CN103088210A Method for selectively leaching nickel and molybdenum from nickel-molybdenum ore |
| 05/08/2013 | CN103088207A Efficient vanadium extraction method by performing alkali roasting on vanadium mineral |
| 05/08/2013 | CN103088204A Method for extracting lead and molybdenum from lead and molybdenum associated mineral |
| 05/08/2013 | CN102586595B Acid leaching method of vanadium-containing shale |
| 05/08/2013 | CN102041390B Method for recycling tungsten from molybdenum-removal slag |
| 05/08/2013 | CN102021345B Method for recycling vanadium pentoxide and sodium dichromate |
| 05/08/2013 | CN101906532B Process and equipment for producing soluble low-sulfur molybdenum oxide by cyclic fluidized bed roasting |
| 05/02/2013 | US20130108526 Method for materials recovery from catalysts comprising iron, cerium, molybdenum, and potassium |
| 05/01/2013 | CN103080277A Slurry catalyst and slurry flakes valorization |
| 05/01/2013 | CN103074503A Wastewater zero discharging system and method for vanadium extraction from stone coal |
| 05/01/2013 | CN103074494A Method of recovering molybdenum and cobalt from waste cobalt-molybdenum catalyst |
| 05/01/2013 | CN103074491A Method for extracting and separating copper, chromium and nickel from acid leaching solution |
| 04/30/2013 | CA2670060C System and method for conversion of molybdenite to one or more molybdenum oxides |
| 04/25/2013 | US20130098207 Method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as intermediate material |
| 04/25/2013 | US20130098206 Method for cyclically preparing titanium sponge and coproducing sodium cryolite using sodium fluotitanate as intermediate material |
| 04/24/2013 | CN202898497U Novel reactor for producing sponge titanium |
| 04/24/2013 | CN103069023A Method and apparatus for recovering metal from electric furnace dust |
| 04/24/2013 | CN103060838A Method for extracting chromium by electrochemically decomposing chromite in potassium hydroxide solution |
| 04/24/2013 | CN103060579A Vacuum rotary kiln for treating molybdenite concentrate |
| 04/24/2013 | CN103060575A Process of purifying dephosphorization slag to extract vanadium in vanadium pentoxide production |
| 04/24/2013 | CN103060574A Method for recovering valuable metal molybdenum and copper from waste residues generated by ammonium molybdate production |
| 04/24/2013 | CN103060564A Novel process for preparing acid-soluble titanium-rich material and iron powder by using tunnel kiln reduction selective grinding method |
| 04/24/2013 | CN103060563A Technology of deep purification and impurity removal of ammonium tungstate or ammonium molybdate solution |
| 04/24/2013 | CN103060551A Method for leaching vanadium |
| 04/24/2013 | CN102628098B Boiler with decarbonization and roasting processes for refining vanadium pentoxide |
| 04/23/2013 | CA2664818C Method and apparatus for continuous producing of metallic titanium or titanium-based alloys |
| 04/18/2013 | WO2013054282A1 Treatment of chemical feedstocks |
| 04/18/2013 | US20130091989 Method for recovering rare earth, vanadium and nickel |
| 04/18/2013 | US20130091988 Method for producing metal zirconium industrially and producing low-temperature aluminum electrolyte as byproduct |
| 04/18/2013 | CA2851186A1 Treatment of chemical feedstocks |
| 04/17/2013 | CN103045880A Method for removing magnesium chloride from titanium sponge |
| 04/17/2013 | CN103045868A Method for extracting vanadium from extracted vanadium tailings |
| 04/17/2013 | CN103045862A Separation and purification method of trace hafnium in rock |
| 04/17/2013 | CN102094123B Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
| 04/17/2013 | CN102086485B Comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by circulating fluidized bed boiler |
| 04/17/2013 | CN102071321B Method for extracting vanadium and chromium from vanadium-containing steel slag by high-alkalinity potassium hydroxide |
| 04/10/2013 | CN103031445A Method for effectively roasting and leaching vanadium slag |
| 04/10/2013 | CN103031440A Treatment method of titanium-containing waste liquid |
| 04/10/2013 | CN103031439A Method for treating nickel-containing stainless steel alloyed scraps |
| 04/10/2013 | CN102560153B Methods for preparing sponge titanium by aluminothermic reduction of potassium fluotitanate |
| 04/10/2013 | CN102534261B Process method for preparing titanium sponge |
| 04/10/2013 | CN102358918B Antimony removing method for ultra-pure tantalum pentoxide and niobium pentoxide |
| 04/10/2013 | CN102337397B High-efficient separation and extraction process of silicon and vanadium in stone coal |
| 04/03/2013 | CN103025899A Method for the extraction and recovery of vanadium |
| 04/03/2013 | CN103014379A Process for extracting vanadium from stone coal vanadium mine |
| 04/03/2013 | CN103014378A Vanadium liquid purification method |
| 04/03/2013 | CN103014377A Vanadium liquid purification method |
| 04/03/2013 | CN103014376A Method for reducing chlorine content in titanium sponge |
| 04/03/2013 | CN103014375A Device for taking sponge titanium lumps out of reactor |
| 04/03/2013 | CN103014374A Process for establishing kish on smelting cold bed of EB (Electronic Beam) furnace |
| 04/03/2013 | CN103014362A Method for reducing content of calcium and magnesium in high-calcium-magnesium titanium slag |
| 04/03/2013 | CN103014360A Method for leaching and recovering vanadium from vanadium-making waste residue |
| 04/03/2013 | CN103014356A Method for recovering chromium and nickel from settled dust of stainless steel |
| 04/03/2013 | CN103014355A Multi-metal comprehensive recycling process for copper smelting ash |
| 04/03/2013 | CN103014351A Separation method of chromium zirconium copper scrap |
| 04/03/2013 | CN103014343A Process for recycling ammonium tungstate from ammonium paratungstate crystallization mother liquor |
| 04/03/2013 | CN103014341A Selective separation method of chromium and iron in hydrochloric acid system solution |
| 04/03/2013 | CN103014340A Method for selectively separating chromium and ferrum in sulfate solution |
| 04/03/2013 | CN103014337A Method for separating copper, chromium and zinc in acid leaching solution |
| 04/03/2013 | CN103014332A Pretreatment method for extracting molybdenum from molybdenum ore |
| 04/03/2013 | CN103014331A Process for pressure leaching of molybdenum and nickel from molybdenum-nickel ore |
| 04/03/2013 | CN103014330A Method for improving water leaching rate of vanadium by using calcine afterheat |
| 04/03/2013 | CN103014321A Raw material pretreatment process for extracting vanadium from vanadium slag |
| 04/03/2013 | CN103011537A Method for treating sludge containing trivalent chromium and recovering heavy metal |
| 04/03/2013 | CN103008634A Method for smelting with titanium sponge protection container |
| 04/03/2013 | CN103007871A Application of barium sulfate nano-particle and aggregate of barium sulfate nano-particle in CrO4<2-> absorption |
| 04/03/2013 | CN102534259B Novel fluidized bed chlorinator without perforated-plate |
| 04/03/2013 | CN102433431B Roasting method for refining vanadium pentoxide |
| 03/28/2013 | WO2013040694A1 Process for upgrading tantalum and niobium ores and concentrates with the recovery of manganese and rare earths oxides |
| 03/28/2013 | US20130078167 Method of metals recovery from refinery residues |
| 03/28/2013 | CA2849787A1 Process for upgrading tantalum and niobium ores and concentrates with the recovery of manganese and rare earths oxides |
| 03/27/2013 | EP2572006A1 Method for the extraction and recovery of vanadium |
| 03/27/2013 | EP2571812A1 Adsorbing agent containing titanium and iron compounds |
| 03/27/2013 | CN202836168U Novel wolfram carbide torrefaction kiln |
| 03/27/2013 | CN102994780A Method for purifying tantalum powder |
| 03/27/2013 | CN102994761A Method for purifying and recovering crude chromium and nickel products by cascade extraction method |
| 03/27/2013 | CN102994751A Method for reducing concentration of calcium ions in calcium-containing solution |
| 03/27/2013 | CN102994738A Method for preparing niobium-enriched ore by employing X-fluorescence sorting-microwave carbon thermal reduction |
| 03/27/2013 | CN102534229B Method for selectively leaching vanadium from vanadium-bearing converter slag |
| 03/21/2013 | WO2012014174A8 Process for manufacturing physical assets for civil and/or industrial facilities on moon, mars and/or asteroid |
| 03/20/2013 | EP2569068A1 Separation method |
| 03/20/2013 | CN102985148A Separation method |
| 03/20/2013 | CN102978420A Reducing device for producing titanium sponge |
| 03/20/2013 | CN102978406A Regeneration method for rhenium-containing high-temperature alloy scrap |
| 03/20/2013 | CN102978404A Method capable of recovering chromium in waste catalyst |
| 03/20/2013 | CN102978389A Leaching method for vanadium in vanadium-containing stone coal |
| 03/20/2013 | CN102978388A Ammonia leaching pretreatment process of molybdenum concentrate or molybdenic acid filter cake |
| 03/20/2013 | CN102978381A Technology for producing tungsten trioxide by prilling and roasting of tungsten slag |
| 03/20/2013 | CN102978378A Leaching method of associated titanium deposit metallic titanium of coal measure strata |
| 03/20/2013 | CN102976290A Preparation method of iron vanadium nitride |