| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 09/18/2013 | CN102732739B Method for extracting V2O5 from vanadium-containing shale by using chlorination evaporation |
| 09/18/2013 | CN102703715B Method for recovering rhenium and molybdenum from rhenium and molybdenum-containing concentrate calcination flue dust |
| 09/11/2013 | CN203187732U Device for preventing distilled magnesium from combusting |
| 09/11/2013 | CN103298742A Process for manufacturing lower chlorides of titanium |
| 09/11/2013 | CN103290241A Method for extracting tungsten cobalt molybdenum nickel by jointly melting waste tungsten and nickel-molybdenum ore niter |
| 09/11/2013 | CN103290240A Method for extracting vanadium by using vanadium-containing stone coal power generation ash with sensible heat and low energy consumption |
| 09/11/2013 | CN103290239A Method for extracting vanadium from production flow of aluminum oxide |
| 09/11/2013 | CN103290238A Method for leaching and extracting vanadium from vanadium-containing shale rocks |
| 09/11/2013 | CN103290224A Recovery process for valuable metals in tungsten residues |
| 09/11/2013 | CN103290219A Impurity removing method of leached solution of mixing roasted stone coal vanadium ore |
| 09/11/2013 | CN103290215A Method for curing and leaching reinforced stone coal navajoite concentrated acid |
| 09/11/2013 | CN103290213A Process for recycling valuable metal from nickel laterite ores and simultaneously by-producing anhydrous calcium chloride |
| 09/11/2013 | CN102703696B Method for recovering valuable metal from red soil nickel minerals comprehensively |
| 09/10/2013 | CA2558248C Agglomeration of titania |
| 09/04/2013 | CN103276227A Method for extracting vanadium from vanadium-titanium magnetite concentrates |
| 09/04/2013 | CN103276226A Method for preparing rich-titanium material from direct-reduction obtained molten slag through modification and high-pressure leaching processing |
| 09/04/2013 | CN103276219A Clean production method for treating waste residues of reduction roasting nickel laterite ore to prepare ferronickel |
| 09/04/2013 | CN103276218A Method for recycling vanadium from vanadium-containing electrolysis aluminum slag ash |
| 09/04/2013 | CN103276213A One-step new technology for separating ferrum, titanium and vanadium in vanadium-titanium-ferrum concentrate |
| 09/04/2013 | CN103276211A Method for extracting iron and vanadium from vanadium-titanium magnetite concentrates |
| 09/04/2013 | CN103276209A Method for nickel and molybdenum separation from high carbon nickel-molybdenum ore through catalysis oxidation |
| 09/04/2013 | CN103276208A Method for decomposing scheelite |
| 09/04/2013 | CN103276207A Method for preparing titanium solution by wet-processing on vanadium-titanium magnetite concentrates |
| 09/04/2013 | CN103276205A Method for separating and extracting vanadium and chromium from vanadium chromium leaching liquor |
| 09/04/2013 | CN103276204A Method for preparing titanium slag by wet-processing on vanadium-titanium magnetite concentrates |
| 09/04/2013 | CN103276196A Method for extracting vanadium from vanadium-titanium magnetite concentrates |
| 09/04/2013 | CN103276195A Stone coal vanadium ore shaft roasting method and system |
| 09/04/2013 | CN103272535A Method for treating leather making sludge by using load type initiator |
| 09/04/2013 | CN102206762B Crystal zirconium growth system with iodine doser |
| 08/29/2013 | US20130221586 Method and apparatus for leaching metal from mining ore |
| 08/29/2013 | US20130220078 Method for leaching of copper and molybdenum |
| 08/28/2013 | EP2631310A1 Method for cyclically preparing titanium sponge and coproducing potassium cryolite using potassium fluotitanate as intermediate material |
| 08/28/2013 | EP2631309A1 Method for cyclically preparing titanium sponge and coproducing sodium cryolite using sodium fluotitanate as intermediate material |
| 08/28/2013 | CN203163469U Mechanization shaft kiln for roasting navajoite |
| 08/28/2013 | CN203159690U Double-big-cover distilling apparatus for producing titanium sponge through magnesium method |
| 08/28/2013 | CN203159650U Slagless production device for iron/aluminum/titanium reducing molten salt method |
| 08/28/2013 | CN103266231A High-efficiency and clean tungsten smelting method |
| 08/28/2013 | CN103266230A Vanadium-containing stone coal shaft furnace oxygen-rich roasting system and method thereof |
| 08/28/2013 | CN102459665B Process for separating hafnium and zirconium |
| 08/28/2013 | CN102443710B Method for treating scrapped molten salt generated in molten salt chlorination production method of TiCl4 |
| 08/28/2013 | CN102399976B Roasting pretreatment process for extracting vanadium pentoxide from high-carbon scherbinaite-containing coal mine and vanadium pentoxide extracting method |
| 08/28/2013 | CN102382993B Preparation method of target-grade ultrahigh-purity tantalum metal |
| 08/21/2013 | CN203144502U Reactor stable argon charging device for titanium sponge production |
| 08/21/2013 | CN203144501U Vacuum pumping tube fixing device for titanium sponge production |
| 08/21/2013 | CN203144500U Passageway heater for titanium sponge production |
| 08/21/2013 | CN203144492U Tungsten-base alloy scrap material recovery furnace |
| 08/21/2013 | CN103261456A Upgrading of titaniferous material |
| 08/21/2013 | CN103255294A Comprehensive reuse process of ferrochrome smelting slag |
| 08/21/2013 | CN103255290A Energy-saving emission-reduction tungsten smelting technique |
| 08/21/2013 | CN103255288A Purification method of industrial molybdenum powder |
| 08/21/2013 | CN103255287A Process for extracting vanadium pentoxide from stone coal vanadium ores |
| 08/21/2013 | CN102851487B Mixture, method for recovering ferro-vanadium bag dedusting material, and vanadium extraction method |
| 08/21/2013 | CN102676810B Method for separating and recycling vanadium and chromium from vanadate-chromate-containing solution |
| 08/21/2013 | CN102634669B Method for preparing high-purity tantalum ingot by utilizing waste tantalum block |
| 08/21/2013 | CN102583402B Method for simultaneously extracting vanadium and silicon from stone coal |
| 08/21/2013 | CN102560103B Method for purification production of molybdenum disulfide from molybdenum concentrate |
| 08/20/2013 | CA2762897C Method for producing titanium metal |
| 08/14/2013 | CN102732713B Method for separating and recovering sediments after processing rhenium molybdenum concentrate-containing high lead |
| 08/14/2013 | CN102618726B Treatment method for detoxifying and recycling chromium slag |
| 08/14/2013 | CN102560116B Method of extracting manganese, vanadium from titanium white waste acid, manganese residual and steel slag containing vanadium |
| 08/14/2013 | CN102453801B Method for separating zirconium and hafnium |
| 08/14/2013 | CN102424913B Method for separating vanadium and chromium from mixing solution containing vanadium (V) and chromium (VI) |
| 08/13/2013 | US8506911 Compositions and methods for treating nuclear fuel |
| 08/07/2013 | CN203112899U High-temperature and high-pressure alkali cooking reaction kettle for molybdenum tailings |
| 08/07/2013 | CN103237926A Method and system for electrolytically reducing a solid feedstock |
| 08/07/2013 | CN103233130A Chromium slag treatment method |
| 08/07/2013 | CN103233125A Method for extracting tungsten, molybdenum and rhenium from waste high-temperature alloy |
| 08/07/2013 | CN102409177B Method for comprehensively recovering aluminum, silicon and titanium from pyrite tailings |
| 08/01/2013 | WO2013110419A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 08/01/2013 | US20130195738 Process for the recovery of titanium dioxide and value metals and system for same |
| 08/01/2013 | US20130195737 Method for extracting tungsten from scheelite |
| 08/01/2013 | CA2862543A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 07/31/2013 | CN203096148U Retention ring for kiln head of reduction kiln |
| 07/31/2013 | CN102758095B Method for charging argon in case of cooling sponge titanium reactor |
| 07/31/2013 | CN102586610B Cleaner production process for synchronously extracting vanadium and aluminum from aluminothermic vanadium iron slag |
| 07/31/2013 | CN102433436B Method for separating iron and vanadium and titanium from vanadium titano-magnetite |
| 07/25/2013 | WO2013107111A1 Method for preparing titanium sponge from sodium fluorotitanate via aluminothermy |
| 07/25/2013 | WO2013107110A1 Method using sodium fluorotitanate as raw material for preparing titanium sponge |
| 07/25/2013 | WO2013107109A1 Reaction apparatus for use in preparing titanium sponge |
| 07/25/2013 | WO2013107108A1 Method for preparing titanium sponge from potassium fluorotitanate via aluminothermy |
| 07/25/2013 | WO2013107107A1 Method for preparing titanium sponge |
| 07/25/2013 | WO2013107106A1 Distillation apparatus for use in preparing titanium sponge |
| 07/25/2013 | DE102012200990A1 Verfahren zur Rückgewinnung von Molybdat bei einer mit Molybdat katalysierten Delignifizierung von Zellstoff mit Wasserstoffperoxid A process for the recovery of molybdate at a molybdate-catalyzed delignification of pulp with hydrogen peroxide |
| 07/24/2013 | EP2618088A1 Reaction equipment for producing sponge titanium |
| 07/24/2013 | EP2618087A1 Distillation equipment for producing sponge titanium |
| 07/24/2013 | EP2617847A1 Sealing ring and preparation method thereof |
| 07/24/2013 | EP2617845A1 Method for preparing sponge titanium from sodium fluotitanate by aluminothermic reduction |
| 07/24/2013 | EP2617844A1 Technological method for preparing sponge titanium from sodium fluotitanate raw material |
| 07/24/2013 | EP2617843A1 Method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction |
| 07/24/2013 | EP2617842A1 Process for Producing Sponge Titanium |
| 07/24/2013 | CN203080037U Novel insulating plate of titanium sponge reduction reactor |
| 07/24/2013 | CN203080036U Magnesium chloride sleeve fixing ring for production of titanium sponge |
| 07/24/2013 | CN103221559A Titanium metal production apparatus and production method for titanium metal |
| 07/24/2013 | CN103221558A Device for producing titanium metal, and method for producing titanium metal |
| 07/24/2013 | CN103221344A A method for recovering transition metal tetrahalide and hydrocarbons from a waste stream |
| 07/24/2013 | CN103215462A Device and process for producing silicon containing titanium sponge |
| 07/24/2013 | CN103215461A 15-ton inverted-U-shaped combination device and production process for producing sponge titanium |
| 07/24/2013 | CN103215440A Desulfuration roasting method of vanadium-extraction stone coal |
| 07/24/2013 | CN103212712A Method for fabricating a metallic article without any melting |
| 07/24/2013 | CN102747218B Process and device for carbon-free roasting of molybdenum concentrate in multi-hearth furnace |