| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 01/23/2013 | CN102888512A Impurity removing method of vanadium solution |
| 01/23/2013 | CN102127654B Method for decomposing chromium-containing vanadium slag by using sodium hydroxide molten salt |
| 01/23/2013 | CN101906539B Method for removing impurity tungsten from cobalt solution |
| 01/17/2013 | US20130014611 Method for recovering tantalum |
| 01/16/2013 | CN202671627U External heating device for vacuum distillation passage for preparing titanium sponge |
| 01/16/2013 | CN1921941B Method for recovering molybdenum and method for preparing catalyst |
| 01/16/2013 | CN102876906A Method for extraction and separation of tungsten and molybdenum from tungsten and molybdenum mixed solution |
| 01/16/2013 | CN102876905A Method for producing high-purity metal chromium by using single vacuum furnace |
| 01/16/2013 | CN102876901A Feeding process for vacuum self-consuming smelting of titanium or titanium alloy |
| 01/16/2013 | CN102876899A Method for effectively separating and extracting vanadium and chromium from vanadium-leaching wastewater |
| 01/16/2013 | CN102876896A Method for recovering vanadium by decomposing vanadium extraction tailings by using sodium hydroxide solution |
| 01/16/2013 | CN102876895A Method for recycling vanadium and chromium from low-concentration pentavalent vanadium and hexavalent chromium mixed liquor |
| 01/16/2013 | CN102409159B Powder decarburization system |
| 01/16/2013 | CN102154547B Method for decomposing scheelite with ammonium salts |
| 01/16/2013 | CN102140578B Molybdenum-tungsten separating process for molybdenum-tungsten mixed ammonium salt solution in tungsten hydrometallurgy |
| 01/16/2013 | CN101664660B Lining structure of boiling chlorination furnace |
| 01/16/2013 | CN101517104B Process for recovering group vi-b metals from spent catalysts |
| 01/15/2013 | CA2448381C Method for manufacturing metal nuggets |
| 01/10/2013 | DE112011101153T5 Verfahren zur Rückgewinnung von Tantal A method for recovering tantalum |
| 01/09/2013 | EP2542708A2 Method of metals recovery from refinery residues |
| 01/09/2013 | CN202658214U Reaction cylinder for large reduction distillation furnace |
| 01/09/2013 | CN202658213U Upper cover of reactor for large-sized reduction distillation furnace |
| 01/09/2013 | CN102864318A Method for recycling vanadium from acid vanadium-containing solution containing silicon and phosphorus |
| 01/09/2013 | CN102864317A Sponge titanium reduction and distillation reactor sprayed with anti-oxidation layer on outer surface and spraying method |
| 01/09/2013 | CN102864316A High-temperature creep elongation proof device for sponge titanium reduction and distillation reactor barrel |
| 01/09/2013 | CN102864300A Method for separating molybdenum and tungsten from molybdenum-tungsten concentrate |
| 01/09/2013 | CN102861891A Manufacture method of sponge titanium reduction distillation retort |
| 01/09/2013 | CN101918319B Production of titanium trifluoride |
| 01/02/2013 | CN102859013A Titanium bearing material flow control in the manufacture of titanium tetrachloride using a combination of feedback and feed forward responses |
| 01/02/2013 | CN102858925A Hydromethanation of a carbonaceous feedstock with vanadium recovery |
| 01/02/2013 | CN102851521A Method for extracting vanadium through oxidation conversion of vanadium-containing ores |
| 01/02/2013 | CN102851507A Vanadium slag sodium modification roasting method |
| 01/02/2013 | CN102851500A Method for extracting vanadium from vanadium-containing highly concentrated sulfuric acid solution and application of extracting agent |
| 01/02/2013 | CN102851487A Mixture, method for recovering ferro-vanadium bag dedusting material, and vanadium extraction method |
| 01/02/2013 | CN102847954A Vacuum furnace device for dehydrogenation of titanium hydride powder and dehydrogenation method thereof |
| 01/02/2013 | CN102537347B Sealing ring and preparation method for sealing ring |
| 01/02/2013 | CN102277481B Method for reducing lead and protecting rhenium for high-lead rhenium and molybdenum containing concentrate |
| 01/02/2013 | CN102181633B Molybdenum concentrate constant pressure oxidation leaching technology of byproduct concentrated sulfuric acid |
| 01/02/2013 | CN102086491B Method for recycling ferrotitanium resource by using titanium sludge |
| 01/02/2013 | CN101962727B Method for preparing sigma-phase FeV50 |
| 01/02/2013 | CN101292052B 含钛矿物的精选 Featured titanium-containing minerals |
| 12/27/2012 | WO2012176740A1 Method and device for manufacturing titanium ingots in which scraps are used |
| 12/27/2012 | US20120328496 Treatment of minerals |
| 12/27/2012 | US20120325052 Method and Device for Producing a Radionuclide |
| 12/26/2012 | CN202626264U Sulfuric acid leaching tank device for vanadium extraction |
| 12/26/2012 | CN202625869U Novel titanium tetrachloride vanadium-removing tower |
| 12/26/2012 | CN102534260B Process method for preparing sponge titanium with sodium fluorotitanate as raw material |
| 12/26/2012 | CN102230082B Method for recovering rare earth and niobium from rare metallic ores |
| 12/26/2012 | CN102115831B Method for preparing titanium sponge |
| 12/26/2012 | CN101781718B Method for extracting metal cobalt and tungsten from scrap hard alloy and special calcining device |
| 12/20/2012 | WO2012173522A1 Method for selectively extracting metals from complex ores |
| 12/20/2012 | WO2012172279A1 Production of metal or alloy objects |
| 12/20/2012 | CA2839053A1 Production of metal or alloy objects |
| 12/19/2012 | CN1936037B Method for oxidizing-converting-leaching vanadium from converter steelmaking extracted vanadium slag under pressure field |
| 12/19/2012 | CN102828025A Method for extracting V2O5 from stone coal navajoite |
| 12/19/2012 | CN102828019A Method for oxygen-enriched calcification calcination of high-grade vanadium slag |
| 12/19/2012 | CN102220487B Method for extracting vanadium and aluminum from vanadium-containing stone coal and clay vanadium ore |
| 12/19/2012 | CN102127657B Comprehensive recovery method for extracting ferrovanadium from stone coal acid immersion liquid |
| 12/13/2012 | WO2012168915A1 Method for the selective separation and recovery of metal solutes from solution |
| 12/12/2012 | EP2531628A1 Process for the recovery of titanium dioxide and value metals by reducing the concentration of hydrochloric acid in leach solution and system for same |
| 12/12/2012 | CN102816942A Process and device for producing high-nitrogen sponge titanium |
| 12/12/2012 | CN102816941A Process and device for producing high-oxygen sponge titanium |
| 12/12/2012 | CN102816940A Titanium tetrachloride charging method for production of sponge titanium |
| 12/12/2012 | CN102816939A Strengthened cooling method and device for sponge titanium reaction kettle |
| 12/12/2012 | CN102816921A Chloride-free vanadium extraction technology |
| 12/06/2012 | WO2012163350A1 Process for preparing titanium dioxide |
| 12/06/2012 | US20120304826 Method for preparing sponge titanium from sodium fluotitanate by aluminothermic reduction |
| 12/05/2012 | CN202576533U Single flange structure of reactor used for producing sponge titanium |
| 12/05/2012 | CN102812143A Method For Preparing Ferro Molybdenum From Molybdenite |
| 12/05/2012 | CN102812095A 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 |
| 12/05/2012 | CN102808092A Method for preparing ultra low-oxygen chromium sheets |
| 12/05/2012 | CN102808091A Method for preparing high-purity titanium |
| 12/05/2012 | CN102808082A Method for selective leaching separation of cobalt, nickel and molybdenum from high grade cobalt-nickel-molybdenum waste material |
| 12/05/2012 | CN102260792B Method for extracting vanadium by heap leaching and adding concentrated sulfuric acid and additive in vanadium-containing stone coal |
| 12/05/2012 | CN102220492B Neutralization and reduction treatment device and method for extraction solution from acid extraction of vanadium from bone coal |
| 12/05/2012 | CN102154531B Method for producing artificial rutile from titanium-containing blast furnace slags |
| 12/05/2012 | CN101565775B Method for recovering medium-concentration and low-concentration vanadium in industrial sewage resulted from stone coal vanadium extraction |
| 11/28/2012 | CN202562312U Control circuit of power supply of resistance-heated furnace for producing sponge titanium |
| 11/28/2012 | CN202558913U Titanium sponge reaction furnace heat removal system |
| 11/28/2012 | CN202558912U Automatic argon filling control structure of sponge titanium reactor |
| 11/28/2012 | CN202558911U Shunt device for generating vacuum distillation steam of sponge titanium by using magnesium method type-I furnace |
| 11/28/2012 | CN202558910U Titanium sponge reactor structure |
| 11/28/2012 | CN102803527A Metal titanium production device and metal titanium production method |
| 11/28/2012 | CN102803525A Method for separating and recovering elements coexisting in scrap iron |
| 11/28/2012 | CN102796865A Device and technology for oxygen-enriched roasting of molybdenum sulfide concentrate |
| 11/28/2012 | CN102127655B Method for decomposing vanadium slag under normal pressure with sodium hydroxide solution |
| 11/28/2012 | CN101906546B Method for preparing vanadium-aluminum alloy |
| 11/27/2012 | CA2539537C Process for the recovery of titanium dioxide from titanium-containing compositions |
| 11/21/2012 | CN202543289U Device for extracting vanadium by three-step method |
| 11/21/2012 | CN102787238A Recycling method of raffinate during vanadium extraction from stone coal |
| 11/21/2012 | CN102787194A Method for preparing titanium-rich material by directly reducing molten slag from vanadium-titanium-ferrum concentrate |
| 11/21/2012 | CN102191374B Method for recycling traditional chromium residue |
| 11/21/2012 | CN102086487B Vanadium slag treatment method capable of saving energy and reducing emission |
| 11/21/2012 | CN102051483B Method for reclaiming metals from molybdenum-containing waste catalyst |
| 11/15/2012 | WO2012098126A3 Method for obtaining elements or element compounds from the intermediate products or by-products obtained during the production of titanium dioxide |
| 11/15/2012 | US20120289395 Composite system |
| 11/14/2012 | EP2521799A1 A process for recycling of tungsten carbide alloy |
| 11/14/2012 | CN202530135U Lump material returning and roasting system in process of molybdenum oxide roasting |
| 11/14/2012 | CN102776390A Method for producing titanium slabs efficiently |
| 11/14/2012 | CN102776365A Method for aggregating fine fraction titanium raw materials |