| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 11/24/2011 | WO2011143689A1 Method for the extraction and recovery of vanadium |
| 11/24/2011 | CA2797296A1 Method for the extraction and recovery of vanadium |
| 11/23/2011 | EP2388346A1 Production of fine grain niobium products by micro-alloying and ingot metallurgy |
| 11/23/2011 | EP2388345A1 Fine grain niobium wrought products obtained by VAR ingot metallurgy |
| 11/23/2011 | EP2388238A1 Process for preparing vanadium pentoxide |
| 11/23/2011 | CN102251121A Method for preparing industrial molybdenum trioxide by roasting ammonia leaching residue |
| 11/23/2011 | CN102251119A Method for recycling vanadium extraction tailings |
| 11/23/2011 | CN102251113A Method for purifying vanadium leaching solution |
| 11/23/2011 | CN102251103A Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid |
| 11/16/2011 | EP1989336B1 Reactor intended for titanium production |
| 11/16/2011 | CN202039112U Furnace lining structure of titanium sponge reacting furnace |
| 11/16/2011 | CN102242282A Alkaline reduction smelting method for vanadium polymetallic ore |
| 11/16/2011 | CN102242281A Reactor top cover for titanium sponge production |
| 11/16/2011 | CN102242280A Heating furnace for production of titanium sponge by the method of magnesium reduction-vacuum distillation |
| 11/16/2011 | CN102242274A Method for producing vanadium pentoxide by roasting vanadium slag |
| 11/16/2011 | CN101935768B Method for comprehensively recovering carbon from extraction of vanadium from stone coal |
| 11/16/2011 | CN101476036B Method for extracting vanadium by stone coal and sulfuric acid wet pile oxidation conversion at normal temperature and pressure |
| 11/10/2011 | WO2011139694A1 Hydromethanation of a carbonaceous feedstock with vanadium recovery |
| 11/10/2011 | WO2011137489A1 Separation method |
| 11/10/2011 | US20110272272 Method of producing molybdenum-99 |
| 11/10/2011 | CA2791942A1 Hydromethanation of a carbonaceous feedstock with vanadium recovery |
| 11/09/2011 | CN202030809U Special equipment for cleaning slag of ferrovanadium smelting |
| 11/09/2011 | CN101550493B Microwave-assisting method for fast leaching vanadium in stone coal vanadium ore |
| 11/08/2011 | US8052956 Tungstic acid powder consisting of spherical tungsten particles and method for producing same |
| 11/03/2011 | WO2011135991A1 Valuable metal recovery method |
| 11/02/2011 | EP1726386B1 Method for making and using a rod assembly as feedstock material in a smelting process |
| 11/02/2011 | CN102230732A Closed automatic slag discharge device for boiling chlorination furnace |
| 11/02/2011 | CN102230092A Reduction distillation device for producing sponge titanium by magnesium reduction process |
| 11/02/2011 | CN102230082A Method for recovering rare earth and niobium from rare metallic ores |
| 11/02/2011 | CN102230072A Roasting method for extracting vanadium from vanadium-containing shale |
| 11/02/2011 | CN101906538B Method for extracting nickel and molybdenum from nickel-molybdenum symbiotic ore by low-concentration composite acid and oxidizing agent |
| 11/02/2011 | CN101648759B Recycling processing method for wastewater produced by processing stainless steel |
| 11/02/2011 | CN101648757B Recycling processing method for stainless steel processing process wastewater grading precipitation |
| 11/02/2011 | CN101254948B Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 10/27/2011 | WO2011132705A1 Treatment agent and treatment method for contaminated water containing heavy metals |
| 10/27/2011 | WO2011107802A3 Recovery method of catalytic metals from oil refinery residues |
| 10/26/2011 | EP1930451B9 High-purity hafnium, target and thin film comprising high-purity hafnium, and process for producing high-purity hafnium |
| 10/26/2011 | CN102226237A Method for extracting ammonium metavanadate, silica white and coal powder from vanadium-containing coal gangue |
| 10/20/2011 | WO2011129565A2 Method for producing tantalum (ta) powder using eutectic alloys |
| 10/19/2011 | CN202011899U Accuracy control device for charging titanium tetrachloride in titanium reducing and distilling furnace |
| 10/19/2011 | CN202011898U Heating type reactor large cover |
| 10/19/2011 | CN102220500A Method for producing ammonium molybdate from molybdenum-bismuth bulk concentrates of high impurity content and low grade |
| 10/19/2011 | CN102220499A Roasting-leaching method of fine vanadium slags |
| 10/19/2011 | CN102220498A Method for preparing fine vanadium slag |
| 10/19/2011 | CN102220497A Equipment for preparing fine vanadium slag |
| 10/19/2011 | CN102220495A Method for purifying vanadium-precipitating mother liquor |
| 10/19/2011 | CN102220492A Neutralization and reduction treatment device and method for extraction solution from acid extraction of vanadium from bone coal |
| 10/19/2011 | CN102220487A Method for extracting vanadium and aluminum from vanadium-containing stone coal and clay vanadium ore |
| 10/19/2011 | CN102220478A Preparation method for vanadium pentoxide |
| 10/19/2011 | CN101054630B Integrated treatment method for the three wastes generated form method of extracting vanadium pentoxide from stone-like coal navajoite |
| 10/13/2011 | WO2011125510A1 Method for recovering tantalum |
| 10/13/2011 | WO2011125402A1 Metal titanium production device and metal titanium production method |
| 10/13/2011 | US20110250107 Column geometry to maximize elution efficiencies for molybdenum-99 |
| 10/13/2011 | US20110247459 Compound, Metal Extractant, and Application of the Same |
| 10/13/2011 | CA2795184A1 Metal titanium production device and metal titanium production method |
| 10/12/2011 | EP2374562A1 Tantalum powder with specific surface area |
| 10/12/2011 | CN202007266U Furnace casing structure of titanium sponge reaction furnace |
| 10/12/2011 | CN202007265U Magnesium chloride discharge pipe support for production of titanium sponge |
| 10/12/2011 | CN102212709A Method for extracting vanadium by calcining vanadium-containing stone coal powder in calciner and pickling |
| 10/12/2011 | CN102212708A Roasting-free wet vanadium extraction process for vanadium-containing mineral |
| 10/12/2011 | CN102212707A Method for decomposing titanium-containing blast-furnace slag through fused salt |
| 10/12/2011 | CN102212697A Tungsten slag treatment method |
| 10/12/2011 | CN102212694A Method for extracting valuable metal from waste hydrogenation catalyst |
| 10/12/2011 | CN102212689A Method for removing chromium and recycling nickel by oxidizing nickel/chromium-containing aqueous solution |
| 10/06/2011 | US20110243784 Method for recovering metal from target and method for manufacturing target |
| 10/05/2011 | CN102206762A Crystal zirconium growth system with iodine doser |
| 10/05/2011 | CN101787430B Method for increasing leaching rate of navajoite under navajoite kiln roasting condition |
| 10/05/2011 | CN101517103B Method and apparatus for continuous producing of metallic titanium and titanium-based alloys |
| 09/28/2011 | EP2244980B1 The production of titanium trifluoride |
| 09/28/2011 | EP2010684B1 Processing of waste or cyclone solids from the chlorination of titanium bearing ores |
| 09/28/2011 | CN102199710A Method for extracting and separating nickel and molybdenum from nickel-molybdenum-containing coal gangue |
| 09/28/2011 | CN101760649B Bacterial leaching way of vanadium in high-sulfur vanadium stone-like coal |
| 09/22/2011 | WO2011113080A1 Method of oxidative leaching of molybdenum - rhenium sulfide ores and/or concentrates |
| 09/22/2011 | CA2793240A1 Method of oxidative leaching of molybdenum - rhenium sulfide ores and/or concentrates |
| 09/21/2011 | EP2366036A1 Recovery of metals and acids from exhausted pickling solutions and/or neutralization sludge |
| 09/21/2011 | CN102191390A Method for recovering hexavalent chromium resources from chromium slag |
| 09/21/2011 | CN102191389A Rinsing method and device of potassium fluotantalate product obtained through sodium reduction |
| 09/21/2011 | CN102191388A Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
| 09/21/2011 | CN102191387A Method for purifying titanium solution |
| 09/21/2011 | CN102191374A Method for recycling traditional chromium residue |
| 09/20/2011 | US8021601 Plant for the heat treatment of solids containing titanium |
| 09/14/2011 | CN102181670A Method for preparing titanium sponge through magnesium and chlorine recycling |
| 09/14/2011 | CN102181669A Method for preparing titanium-enriched material from high-impurity-content ilmenite concentrate |
| 09/14/2011 | CN102181647A Method for extracting chromated nickel from low-grade stainless steel sludge by using stainless steel acid-washing waste mother liquor |
| 09/14/2011 | CN102181637A Preparation method of sulfo-molybdate for separating molybdenum from tungstate solution |
| 09/14/2011 | CN102181635A Method for preparing vanadium pentoxide from sulfuric acid leach liquor of stone coal vanadium ore |
| 09/14/2011 | CN102181633A Molybdenum concentrate constant pressure oxidation leaching technology of byproduct concentrated sulfuric acid |
| 09/14/2011 | CN102181626A Beneficiating method for ilmenite |
| 09/14/2011 | CN101787432B Method for preparing acid-soluble titanium slag from high-titanium slag |
| 09/14/2011 | CN101787431B Method for preparing acid-soluble titanium slag by high titanium slag through microwave irradiation |
| 09/14/2011 | CN101633981B Titaniferous material acidolysis method and titanium dioxide preparing method |
| 09/09/2011 | CA2791636A1 Method of metals recovery from refinery residues |
| 09/07/2011 | EP1910581B1 Process for metals recovery from spent catalyst |
| 09/07/2011 | CN1899728B Valve metal powders and process for producing them |
| 09/07/2011 | CN1699000B Method for preparing a metallic article having an other additive constituent, without any melting |
| 09/07/2011 | CN102175077A Apparatus for melting metal by electron beams and process for producing high-melting metal ingot using this apparatus |
| 09/07/2011 | CN102174425A Acidithiobacillus and application thereof |
| 09/07/2011 | CN101537388B Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate |
| 09/06/2011 | US8012273 Producing metallic articles by reduction of nonmetallic precursor compounds and melting |
| 09/06/2011 | CA2449165C Production of pure molybdenum oxide from low grade molybdenite concentrates |