| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 08/16/2006 | EP1690951A1 METHOD FOR PRODUCING Ti OR Ti ALLOY TROUGH REDUCTION BY Ca |
| 08/10/2006 | WO2006082677A1 Production method of consumable electrode for melting by consumable electrode arc melting method and end face cutter for use therein |
| 08/10/2006 | WO2006082484A2 Reduction of copper content in the molybdenite concentrate |
| 08/10/2006 | US20060177363 Production of titania |
| 08/10/2006 | US20060174727 Method for the production of metal powders or metal hydride powders of the elements ti,zr, hf,v,nb.ta and cr |
| 08/09/2006 | EP1590494B1 A method for increasing the chrome to iron ratio of chromites products |
| 08/09/2006 | CN1814827A Method for separating and recovering cobalt and molybdic from waste cobalt-molybdic catalyst |
| 08/09/2006 | CN1814813A Method for separating and extracting iron, vanadium and titanium from vanadium-titanium magnetite |
| 08/09/2006 | CN1268791C Method for removal of X and M from solid compound of matter X and metal M |
| 08/03/2006 | WO2006079887A2 A method of producing titanium |
| 08/02/2006 | EP1686196A1 High purity hafnium, target and thin film comprising said high purity hafnium, and method for producing high purity hafnium |
| 08/02/2006 | EP1684930A1 Method for producing molybdenum metal and molybdenum metal |
| 08/02/2006 | CN1812859A A method and apparatus for the production of metal compounds |
| 07/27/2006 | WO2006063221A3 Pretreatment of refractory titaniferous ores |
| 07/27/2006 | US20060162500 Heating ilmenite to 700-950 degrees C. in the bed; gas flow from below through a tube into a mixing chamber of the reactor, the tube being partly surrounded by a stationary annular fluidized bed; gas velocities adjusted to particle Froude numbers; titanium oxide; iron; iron oxide (FeO) |
| 07/27/2006 | US20060162498 Direct production of refined metals and alloys |
| 07/26/2006 | EP1683879A2 Additives for suppressing tungsten leachability |
| 07/26/2006 | EP1683878A2 Method for suppressing the leachability of certain metals like tungsten and lead |
| 07/26/2006 | EP1683877A1 METHOD FOR PRODUCING Ti OR Ti ALLOY THROUGH REDUCTION BY Ca |
| 07/20/2006 | US20060159604 Pretreatment of refractory titaniferous ores |
| 07/19/2006 | EP1680532A1 Electrochemical reduction of metal oxides |
| 07/19/2006 | EP1680521A1 Production of titania |
| 07/19/2006 | CN1805903A Extraction process for reactive metal oxides |
| 07/13/2006 | WO2006052126A3 Process and apparatus for producing purified titanium tetrachloride |
| 07/13/2006 | US20060153768 Production of titania |
| 07/13/2006 | US20060151326 Electrolytic apparatus for use in oxide electrowinning method |
| 07/13/2006 | US20060151072 Molybdenum alloy x-ray targets having uniform grain structure |
| 07/13/2006 | US20060150769 Preparation of alloys by the armstrong method |
| 07/12/2006 | EP1678337A1 Method for decontaminating material containing hexavalent chrome |
| 07/12/2006 | EP1468124B1 Reductive method for production of metallic elements such as chrome using a crucible with a perforated wall |
| 07/12/2006 | CN1263556C Wet method for treating petroleum-originated combustion ash |
| 07/04/2006 | CA2363031C Improved methods for leaching of ores |
| 06/29/2006 | US20060137992 Separation of metals |
| 06/28/2006 | EP1492905A4 Reduction of metal oxides in an electrolytic cell |
| 06/28/2006 | EP1483431A4 Minimising carbon transfer in an electrolytic cell |
| 06/28/2006 | EP1368513A4 Extraction of metals |
| 06/28/2006 | CN1795276A Method for recovering metallic elements, especially metallic chromium, from slag containing metal oxides in an electric-arc furnace |
| 06/27/2006 | US7066979 Producing precursor of desired morphology, converting precursor into oxide of valve metal, stabilizing structure of oxide by heat treatment, reducing stabilized oxide while retaining morphology; electrolyte capacitors |
| 06/27/2006 | US7066975 For producing anode electrode that has high specific capacitance and low leakage current and that exhibits excellent reliability for a prolonged period of time |
| 06/23/2006 | CA2531556A1 Surface-modified, structurally modified titanium dioxides |
| 06/22/2006 | US20060133985 Process and tubular reactor for recovery of chlorine from iron chlorides |
| 06/22/2006 | US20060130610 Purification process |
| 06/21/2006 | EP1670961A1 Methods and apparatuses for producing metallic compositions via reduction of metal halides |
| 06/21/2006 | CN1791783A Method for the analysis of gas produced by a titanium tetrachloride fluidized bed reactor |
| 06/21/2006 | CN1260377C Ion exchange process of high concentration sodium tungstate solution |
| 06/20/2006 | US7063824 providing alkali fusion decomposed zircon product (AFDZ) by reacting zircon with a source of alkali metal at elevated temperatures, treating the AFDZ to form a solid containing hydrated zirconium oxide and/or hydrated zirconium basic carbonate, treating product to form basic zirconium sulfate; pigments |
| 06/20/2006 | US7063792 Treating aqueous medium containing solution of zirconium and hafnium compound with ligand which complexes with one of the metals; passing over filtration membrane which allows complexes to pass but retains metals not complexed |
| 06/15/2006 | WO2006063221A2 Pretreatment of refractory titaniferous ores |
| 06/15/2006 | WO2006061040A1 Production of valve metal powders |
| 06/15/2006 | WO2006027119A3 Deoxidisation of valve metal powders |
| 06/15/2006 | US20060123951 mixing chromite product with salt, chlorinating in presence of carbon monoxide to induce formation of thin film of melt around the chromite product so as to promote the chlorination of iron, and forming gaseous FeCl3 |
| 06/15/2006 | US20060123950 concentrating metal and salt particulates by removing some of the liquid metal, passing liquid metal or a liquid of the original salt constituent at a temperature greater than melting point of the original salt constituent through the concentrated metal and particles to further concentrate particles |
| 06/15/2006 | CA2591335A1 Pretreatment of refractory titaniferous ores |
| 06/15/2006 | CA2589109A1 Production of valve metal powders |
| 06/14/2006 | CN1785809A Method of recovering tungsten and ammonium chloride from secondary ammonium tungstate crystal mother liquor |
| 06/14/2006 | CN1259438C Method for smelting ferro-tungsten by using scheelite headings |
| 06/08/2006 | US20060120943 Method for manufacturing nanophase TiC-based composite powders by metallothermic reduction |
| 06/07/2006 | EP1666615A1 Method and apparatus for producing metal |
| 06/07/2006 | EP1666419A1 Process for producing rutile |
| 06/07/2006 | EP1663871A1 Process for the recovery of titanium dioxide from titanium-containing compositions |
| 06/07/2006 | EP1539399A4 Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes |
| 06/07/2006 | CN1782108A Method for producing vanadium by stone coal compound calcifying baking-low acid leaching-special ion exchanging |
| 06/07/2006 | CN1258785C Sintered anode |
| 06/01/2006 | WO2006056562A1 Method for recovering titanium tetrachloride from a waste liquid |
| 05/31/2006 | CN1257998C Tantalum and niobium billets and methods of producing the same |
| 05/31/2006 | CN1257990C Method for producing metallic chromium |
| 05/30/2006 | US7052660 Controlling oxidation; slurry containing ammonium metavanadate; decomposition of ammonium sulfate to ammonia |
| 05/25/2006 | US20060110277 Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| 05/25/2006 | US20060107790 System and method of producing metals and alloys |
| 05/25/2006 | US20060107788 Method for producing metal powder and formed product of raw material for metal |
| 05/24/2006 | CN1777971A Molybdenum alloy x-ray targets having uniform grain structure |
| 05/24/2006 | CN1777462A Method and equipment for liquid-liquid extraction |
| 05/24/2006 | CN1777461A Method and equipment for liquid-liquid extraction |
| 05/18/2006 | WO2006051061A1 Preparation of tio2 powders from a waste liquid containing titanium compounds |
| 05/17/2006 | EP1657218A1 Process and apparatus for producing purified titanium tetrachloride |
| 05/17/2006 | EP1656472A2 Thermal and electrochemical process for metal production |
| 05/17/2006 | EP1656461A2 USE OF TIO sb 2 /sb RESIDUES FROM A SULFATE METHOD |
| 05/17/2006 | CN1256447C Technology for producing and reducing ilmenite using rotary kiln |
| 05/16/2006 | CA2405917C Molybdenum metal and production thereof |
| 05/11/2006 | WO2006049050A1 PROCESS FOR PRODUCING Ti THROUGH Ca REDUCTION AND APPARATUS THEREFOR |
| 05/11/2006 | WO2006048283A1 Process and plant for producing titania slag from ilmenite |
| 05/11/2006 | US20060096420 Method for reducing chromium containing raw material |
| 05/11/2006 | US20060096418 Process for the production of niobium and/or tantalum powder with large surface area |
| 05/11/2006 | DE102004054183A1 Thermal recovery of titanium metal with relatively low energy consumption, by froming pure titanium carbide by carbothermic reduction followed by chemical transport rection using titanium fluorides |
| 05/11/2006 | CA2585454A1 Process for producing ti through ca reduction and apparatus therefor |
| 05/11/2006 | CA2583359A1 Process and plant for producing titania slag from ilmenite |
| 05/10/2006 | CN1255559C Method for extracting vanadium by roasting material containing vanadium and its equipment |
| 05/09/2006 | US7041150 Injecting equilibrium vapors; reduction; exothermic reaction |
| 05/04/2006 | DE102004053676A1 Verfahren und Anlage zur Herstellung von Titanschlacke aus Ilmenit Method and apparatus for producing titanium slag from ilmenite |
| 05/03/2006 | EP1652971A1 Oxide electrolyzing electrolysis device |
| 05/03/2006 | EP1652944A1 Highly pure hafnium material, target thin film comprising the same and method for producing highly pure hafnium |
| 05/03/2006 | EP1651785A1 A process for recovering platinum group metals from ores and concentrates |
| 05/03/2006 | EP1468123B1 Method for production of metallic elements of high purity such as chromes |
| 05/02/2006 | US7037466 Method and apparatus for forming billets from metallic chip scraps |
| 04/27/2006 | US20060086621 Electrochemical processing of solid materials in fused salt |
| 04/27/2006 | US20060086435 Slurry is introduced into a first vessel when liquid metal is separated from the metal powder and salt leaving principally salt and metal powder substantially free of liquid metal; salt and metal powder is transferred to a second vessel, treated to produce passivated powder |
| 04/26/2006 | EP1649082A1 Low temperature refining and formation of refractory metals |
| 04/26/2006 | CN1763262A Method for recovering and treating chromium from waste chromium electrodeposition solution |
| 04/20/2006 | WO2006039999A1 Method for the production of valve metal powders |
| 04/19/2006 | EP1570114B1 Separation of metals |