| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 04/19/2006 | CN1761765A Process for the recovery of titanium in mixed chloride media |
| 04/19/2006 | CN1252296C Method for producing ferroalloy |
| 04/13/2006 | WO2006037999A2 Electro-reduction process |
| 04/12/2006 | EP1644544A1 Method for the production of metal powders or metal hydride powders of the elements ti, zr, hf, v, nb, ta and cr |
| 04/12/2006 | CN1759192A Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 04/12/2006 | CN1757772A Method of preparing titanium and titanium alloy using titanium containing furnace clinker |
| 04/12/2006 | CN1757770A Treatment method of high alkali concentration sodium tungstate solution |
| 04/12/2006 | CN1757759A Method of rotary furnace vanadium extracting technology |
| 04/05/2006 | EP1641581A1 A method and apparatus for the production of metal compounds |
| 03/30/2006 | WO2006033051A1 Agglomeration of titania |
| 03/29/2006 | CN1752237A Method for enriching vanadium in vanadium containing steel slag |
| 03/29/2006 | CN1752228A Mechanical activating roasting method for metallurgical material and sodium carbonate |
| 03/23/2006 | DE102004043343A1 Desoxidation von Ventilmetallpulvern Deoxidation of valve metal powders |
| 03/22/2006 | CN1246488C Process for selectively removing molybdenum from liquid mixtures containing it together with vanadium |
| 03/15/2006 | EP1633896A1 Process for purifying inorganic materials |
| 03/15/2006 | EP1633679A1 Extraction process for reactive metal oxides |
| 03/15/2006 | CN1747901A Process for making titanium dioxide |
| 03/14/2006 | CA2334277C Method for processing steel slags |
| 03/09/2006 | US20060051267 Purification of titanium tetrachloride |
| 03/09/2006 | US20060049060 Porous sintered compact of titanium oxide for production of metallic titanium through direct electrolytic process and process for producing the same |
| 03/08/2006 | EP1412546B1 A method for the removal of metals from an aqueous solution using lime precipitation |
| 03/08/2006 | CN1745034A Plasma synthesis of metal oxide nanopowder and apparatus therefor |
| 03/08/2006 | CN1244498C Manufacture of high grade artificial rutile from low grade primary gregorite |
| 03/07/2006 | US7008602 Preoxidation, reduction; acid leaching |
| 03/01/2006 | EP1630238A1 Method of recovering metallic elements from slag containing metaloxides |
| 03/01/2006 | EP1558772A4 Production of titania |
| 03/01/2006 | CN1243840C Method for raising grade of titanium slag Ti02 |
| 02/28/2006 | US7004992 Reducing chromium oxide with silicon to obtain a molten metal, discharging slag produced and adding a basic flux to refine |
| 02/23/2006 | US20060037867 Method of manufacturing titanium and titanium alloy products |
| 02/23/2006 | US20060037673 Chromium-containing metal and manufacturing method thereof |
| 02/22/2006 | EP1627085A1 Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 02/22/2006 | EP1563107A4 Production of titania |
| 02/22/2006 | EP1558771A4 Production of titania |
| 02/21/2006 | US7001443 Oxidation; forming metal oxide chemical intermediate ; reducing metal oxide to alloy |
| 02/15/2006 | EP1625351A1 Method for the analysis of gas produced by a titanium tetrachloride fluidized bed reactor |
| 02/15/2006 | CN1735702A Method for reducing chromium containing raw material |
| 02/15/2006 | CN1735701A Separation system of metal powder from slurry and process |
| 02/09/2006 | US20060027141 Pigment spacing |
| 02/08/2006 | EP1622831A1 Process for the treatment of waste metal chlorides |
| 02/08/2006 | CN1730686A Method of combined dissolve to multiple tungsten to deeply extracting tungsten |
| 02/08/2006 | CN1240859C Method for decomposing calcioscheelite and mixed wolframite calcioscheelite under normal pressure by sodium hydrate |
| 02/07/2006 | US6994837 Metal compound vapour is reacted with an oxidizing gas in electrically induced RF frequency plasma thus forming a metal oxide vapour; metal oxide vapour is rapidly cooled using a highly turbulent gas quench zone |
| 02/02/2006 | CA2575580A1 Electrochemical reduction of metal oxides |
| 02/01/2006 | CN1729305A Production of titania |
| 02/01/2006 | CN1729304A Production of titania |
| 02/01/2006 | CN1729303A Production of titania |
| 01/26/2006 | WO2006009982A1 Metalothermic reduction of refractory metal oxides |
| 01/26/2006 | US20060016291 Niobium powder, process for producing the same and solid electrolytic capacitor therefrom |
| 01/26/2006 | CA2570548A1 Metalothermic reduction of refractory metal oxides |
| 01/25/2006 | EP1618586A2 Molybdenum alloy x-ray targets having uniform grain structure |
| 01/25/2006 | EP1581672A4 Electrochemical reduction of metal oxides |
| 01/25/2006 | CN1726294A Method and device for carrying out a tribochemical reaction |
| 01/25/2006 | CN1724387A Process for extracting vanadium pentoxide from stone coal vanadium mining |
| 01/25/2006 | CN1238536C Process for clean conversion of tantalum niobium ore |
| 01/24/2006 | US6989041 Process for producing titanium sponge |
| 01/19/2006 | US20060011273 Separation process |
| 01/18/2006 | CN1723071A Circumferential air knife and applications |
| 01/12/2006 | US20060005664 Method for preparing metal powder and method for evaluating raw material or diluting salt for use therein |
| 01/11/2006 | CN1720114A Method for preparing metal powder and method for evaluating raw material or diluting salt for use therein |
| 01/11/2006 | CN1718788A Method of producing sponge titanium by using titanium hydride powder titanizing in new reactor |
| 01/11/2006 | CN1236083C Method for purification and preparation of high-purity chromium using electro-plating chromium refuse |
| 01/05/2006 | DE102004027639A1 Verfahren zur Herstellung von Titandioxid nach dem Sulfatverfahren A process for the production of titanium dioxide by the sulphate process |
| 01/05/2006 | CA2572300A1 Production of titanium |
| 12/29/2005 | WO2005123986A1 Electrochemical reduction of metal oxides |
| 12/29/2005 | US20050284824 Filter cake treatment apparatus and method |
| 12/29/2005 | US20050284546 Tantalum sputtering target and method of manufacture |
| 12/29/2005 | US20050284259 Tantalum sputtering target and method of manufacture |
| 12/28/2005 | CN1713943A Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 12/27/2005 | US6979429 Contacting the metal containing material with a mineral acid and a complexing agent to digest ore residue under temperature and pressure conditions suitable to form a (complexing agent)/(fluoride) complex and solubilize; separating |
| 12/22/2005 | WO2005121026A1 Method for producing titanium dioxide according to the sulfate process |
| 12/22/2005 | WO2005028145A3 Method, apparatus and system for segregating salt from metal powder |
| 12/22/2005 | US20050279187 Metalothermic reduction of refractory metal oxides |
| 12/21/2005 | CN1711373A Minimizing carbon transfer in an electrolytic cell |
| 12/21/2005 | CN1710123A Method for recovering vanadium from aluminium-base nickel-containing offscum |
| 12/21/2005 | CN1710122A Method for preparing rutile type titanium-rich material from primary titanium-rich material |
| 12/21/2005 | CN1710121A Method for preparing primary titanium-rich material from high calcium-magnesium-titanium headings |
| 12/15/2005 | DE102004023068A1 Wolframsäure und Verfahrn zu deren Herstellung Tungstic acid and Verfahrn for their preparation |
| 12/14/2005 | CN1708595A A process for simultaneous recovery of chromium and iron from chromite ore processing residue |
| 12/14/2005 | CN1706974A Vanadium extracting process |
| 12/08/2005 | WO2005116278A1 Feedstock compositions for a fluidized bed chlorinator and methods for preparing same |
| 12/08/2005 | WO2005116277A1 Upgrading of zircon |
| 12/08/2005 | US20050272607 Titanium-containing superconducting compositions, and methods of forming titanium-containing superconducting compositions |
| 12/07/2005 | EP1602737A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 12/01/2005 | WO2005113840A1 Method for reducing cr in metallurgical slags containing cr |
| 12/01/2005 | US20050263217 High purity niobium and products containing the same, and methods of making the same |
| 12/01/2005 | CA2563338A1 Method for reducing cr from cr-containing metallurgical slags |
| 11/30/2005 | CN1703531A Method to recover spent components of a sputter target |
| 11/29/2005 | CA2281760C Treatment of a solution containing iron salts |
| 11/24/2005 | WO2005110923A1 Tungstic acid powder consisting of spherical tungsten particles and method for producing same |
| 11/24/2005 | CA2566293A1 Tungstic acid powder consisting of spherical tungsten particles and method for producing same |
| 11/23/2005 | EP1598434A1 Method for preparing a metallic article having an other additive constituent, without any melting |
| 11/23/2005 | EP1597201A2 Process for making titanium dioxide |
| 11/23/2005 | CN1699000A Method for preparing a metallic article having an other additive constituent, without any melting |
| 11/17/2005 | US20050255035 Purification method for producing high purity niobium compound and/or tantalum compound |
| 11/17/2005 | US20050255018 Process to separate the vanadium contained in inorganic acid solutions |
| 11/17/2005 | DE102004020052A1 Verfahren zur Herstellung von Niob- und Tantalpulver A process for producing niobium and tantalum powders |
| 11/17/2005 | CA2506391A1 Method for preparing a metallic article having an other additive constituent, without any melting |
| 11/16/2005 | CN1227155C Preparation method of tungsten and/or molybdenum metal powder, tungsten carbide and/or molybdenum carbide |
| 11/10/2005 | WO2005105346A1 Method for the production of niobium and tantalum powder |
| 11/10/2005 | US20050249652 Process to recover vanadium contained in acid solutions |