| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 03/27/2008 | WO2008036215A1 Methods for recovering refractory metal from wheel grinding |
| 03/26/2008 | CN101151383A Process for producing Ti or Ti alloy, and pull-up electrolysis method applicable to said process |
| 03/26/2008 | CN101148733A Vanadium iron spraying powder refining technique |
| 03/26/2008 | CN101148708A Method for reclaiming molybdenum from aluminum-base molybdenum-containing waste slag |
| 03/26/2008 | CN101148697A Catalyst used for vanadium-containing stone-like coal ore pressure leaching |
| 03/26/2008 | CN100376699C Copper wire tower having supporting device used for removing vanadium impurity in titanium tetrachloride |
| 03/26/2008 | CN100376696C Highly pure hafnium material, target and thin film comprising the same and method for producing highly pure hafnium |
| 03/20/2008 | WO2008031897A1 Process for recovering group vi-b metals from spent catalysts |
| 03/20/2008 | US20080069763 Method for manufacturing titanium oxide-containing slag |
| 03/20/2008 | CA2663228A1 Process for recovering group vi-b metals from spent catalysts |
| 03/19/2008 | EP1899271A2 Process for the extraction of specific transition metals |
| 03/19/2008 | CN101146918A Method of preparing primary refractory metal |
| 03/19/2008 | CN100375791C Methods and apparatuses for producing metallic compositions via reduction of metal halides |
| 03/13/2008 | WO2008028245A1 A sulfate process |
| 03/13/2008 | WO2008028244A1 A sulfate process |
| 03/13/2008 | WO2007130483A3 Tantalum powder with smooth surface and methods of manufacturing same |
| 03/12/2008 | EP1281460B1 Niobium powder, sintered compact thereof and capacitor |
| 03/12/2008 | CN101142330A Method of high-melting-point metal separation and recovery |
| 03/12/2008 | CN101139662A Device and method for preparing metallic titanium by TiCl4 vacuum glow discharge |
| 03/12/2008 | CN100374590C Production of titania |
| 03/11/2008 | US7341705 Process for producing niobium suboxide |
| 03/06/2008 | DE102004020052B4 Verfahren zur Herstellung von Niob- und Tantalpulver A process for producing niobium and tantalum powders |
| 03/05/2008 | EP1641581A4 A method and apparatus for the production of metal compounds |
| 03/05/2008 | CN101135010A Method for recovering and reusing niobium and niobium alloy waste |
| 03/04/2008 | US7338588 Treating a solid precursor material comprising three or more species, including first and second metals or metalloids (M1,Z) and a non-metal species (X), by electro-deoxidation in contact with a melt comprising a fused salt (M2Y) |
| 02/28/2008 | US20080047845 Electrochemical Reduction of Metal Oxides |
| 02/27/2008 | EP1563107B1 Production of titania |
| 02/27/2008 | EP1448802B1 Electrochemical processing of solid materials in fused salt |
| 02/27/2008 | CN100371479C Method for recovering vanadium from aluminium-base nickel-containing offscum |
| 02/26/2008 | US7335618 Method for manufacturing hydrorefining catalyst, and metal recovery method |
| 02/21/2008 | DE19781680B4 Verfahren zur Herabsetzung des Sauerstoffgehaltes in Ventilmetall-Materialien A method of reducing the oxygen content in valve metal materials |
| 02/20/2008 | EP1684930A4 Method for producing molybdenum metal and molybdenum metal |
| 02/20/2008 | CN101126124A Method for preparing high-purity electrolyte for vanadium battery from stone-like coal |
| 02/20/2008 | CN100370042C Open direct-cooling condensation technology for vacuum distillation of reduction distillation furnace |
| 02/20/2008 | CN100369655C Method for treating tail gas in acidolysis main reaction in sulfuric acid method titanium pigment production |
| 02/19/2008 | US7332141 Process to separate the vanadium contained in inorganic acid solutions |
| 02/14/2008 | WO2008017797A1 Radiative post combustio |
| 02/13/2008 | CN101124060A Preparation of valve metal powder |
| 02/13/2008 | CN101121966A Technique for reclaiming vanadium and iron from high-vanadium high-iron steel slag |
| 02/13/2008 | CN101121961A Method for warming and compression production of ammonium metavanadate and warming and compression decomposition tower |
| 02/13/2008 | CN100368768C Method for the analysis of gas produced by a titanium tetrachloride fluidized bed reactor |
| 02/12/2008 | US7329381 Method for fabricating a metallic article without any melting |
| 02/07/2008 | WO2008015108A1 Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron |
| 02/07/2008 | CA2658085A1 Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron |
| 02/06/2008 | EP1558774B1 Method and device for carrying out a tribochemical reaction |
| 02/06/2008 | CN101117665A Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag |
| 02/06/2008 | CN101117660A Method for comprehensive utilization of vanadium titanium and iron ore concentrate by using rotary hearth furnace reduction-grinding - separation |
| 02/06/2008 | CN100366768C Production of titania |
| 02/06/2008 | CN100366315C Method and equipment for liquid-liquid extraction |
| 02/05/2008 | US7326390 Precipitating titanyl sulfate from leach liquors containing acidic solutions of titanyl sulfate using multiple stage leaching, redissolving the precipitated titanyl sulfate; hydrolysing, separation, calcination |
| 01/31/2008 | WO2008013518A1 Titanium alloy |
| 01/30/2008 | CN101115853A Pretreatment of refractory titaniferous ores |
| 01/30/2008 | CN101113495A Method for extracting iron titanium vanadium from high-titanium iron concentrate |
| 01/30/2008 | CN101113492A Ion exchanger for extracting precious metals |
| 01/30/2008 | CN101113488A Method for comprehensive utilization of V-Ti-bearing iron ore concentrate by using tunnel kiln reduction-grinding - separation |
| 01/30/2008 | CN100364640C Circumferential air knife and applications |
| 01/24/2008 | WO2007127482A3 Methods for producing consolidated and purified materials |
| 01/23/2008 | CN101111616A A method of producing titanium |
| 01/23/2008 | CN101109448A Heating high temperature valve and uses thereof |
| 01/17/2008 | WO2008007126A1 Improvements in the production of electrolytic capacitor |
| 01/16/2008 | CN201006890Y Thrust jet for metallic titanium condensing |
| 01/16/2008 | CN100362142C Method for recovering and treating chromium from waste chromium electrodeposition solution |
| 01/15/2008 | US7318914 Adding carbon during autoclaving operation; rejecting dissolved chromium |
| 01/09/2008 | EP1876248A1 PROCESS FOR PRODUCING Ti OR Ti ALLOY, AND PULL-UP ELECTROLYSIS METHOD APPLICABLE TO SAID PROCESS |
| 01/09/2008 | EP1874970A1 Improved titanium precipitation process |
| 01/09/2008 | EP1874969A1 Improved metal extraction |
| 01/09/2008 | EP1874968A1 Operating titanium precipitation process |
| 01/09/2008 | EP1874967A1 Titanium intermediate processing |
| 01/09/2008 | CN101100720A Technique for smelting vanadium iron from calcium vanadate |
| 01/09/2008 | CN101100709A Method for reclaiming chromium in vanadium oxides producing process |
| 01/09/2008 | CN100360428C Method for picking up vanadium pentexide from layer silicate without oxidation in furnace |
| 01/03/2008 | WO2008000810A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/03/2008 | US20080003152 automizing a liquid waster containing TiCl4 or trichloroethoxytitanium with a flow of steam and air, thus forming an atomized liquid, and reacting the liquid with steam to convert precursors to TiO2 , thus forming gaseous phase, feeding gaseous phase and TiO2 to a heated oven to remove HCl and residues |
| 01/03/2008 | CA2654516A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/02/2008 | EP1873265A1 Method of high-melting-point metal separation and recovery |
| 01/02/2008 | CN101098827A Preparation of TiO2 powders from a waste liquid containing titanium compounds |
| 01/02/2008 | CN100359025C Method of extracting vanadium pentoxide from vanadium ore |
| 12/27/2007 | US20070295167 Method for Producing Ti or Ti Alloy Through Reduction by Ca |
| 12/26/2007 | CN200996039Y Vacuum system for producing sponge titanium |
| 12/26/2007 | CN101093141A Vacuum melting furnace for preparing fusion casting type production of molybdenum from worn-out molybdenum |
| 12/26/2007 | CN100357464C Technology of preparing fluorine less niobium oxide by oxalic acid system extraction method |
| 12/26/2007 | CN100357007C Process for reducing chromium nonvolatile residue resulting from air oxidation of cyclohexane |
| 12/21/2007 | WO2007145526A1 Method, apparatus and means for production of metals in a molten salt electrolyte |
| 12/21/2007 | WO2007062434A3 A mineral recovery process |
| 12/20/2007 | US20070292332 Upgrading of Zircon |
| 12/19/2007 | EP1866449A1 Method of preparing primary refractory metal |
| 12/19/2007 | EP1866448A1 Electrochemical method and apparatus for removing oxygen from a compound or metal |
| 12/19/2007 | CN200992570Y Distilling kettle for titanium sponge industrial refining procedure |
| 12/19/2007 | CN200992493Y Condensation waste gas treating device for refining titanium tetrachloride |
| 12/19/2007 | CN100355916C Method for separating hafnium from zirconium |
| 12/12/2007 | CN101086034A Wet method for extracting molybdenum from nickel-molybdenum ore |
| 12/05/2007 | CN101082085A Method for vanadium leaching by sulfate-adding wet-pile oxidation conversion of stone coal under atmospheric temperature and atmosphere pressure |
| 12/05/2007 | CN101082068A Method for separating and extracting multiple metallic elements from vanadium titanium magnetic iron ore |
| 11/29/2007 | WO2005068687A3 A carbonaceous reductant and a process for using the carbonaceous reductant |
| 11/29/2007 | WO2004033760A3 Electrochemical reduction of metal oxides |
| 11/28/2007 | CN101078064A Stone-like coal gas phase vanadium extracting method |
| 11/28/2007 | CN101078063A Method for leaching vanadium from stone-like coal by oxidation transformation |
| 11/28/2007 | CN101078062A Method and device for magnesium method titanium sponge production reactor inner heat exchange |
| 11/22/2007 | WO2007131459A1 Method and device for chlorination of ore-bearing materials |
| 11/22/2007 | US20070269333 Method for fabricating a metallic article without any melting |