| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 06/12/2003 | WO2003048400A2 Process for the treatment of molybdenum concentrate also containing copper |
| 06/12/2003 | WO2003048399A2 Electrochemical processing of solid materials in fused salt |
| 06/10/2003 | US6576069 Tantalum-silicon alloys and products containing the same and processes of making the same |
| 06/05/2003 | WO2003046258A2 A method for electrowinning of titanium metal or alloy from titanium oxide containing compound in the liquid state |
| 06/05/2003 | WO2003046236A1 Method for processing loparite concentrate |
| 06/05/2003 | WO2003046235A1 Method for breaking down loparite concentrate |
| 06/05/2003 | WO2003046234A1 Method for processing loparite concentrate |
| 06/03/2003 | CA2364213A1 Process for the treatment of molybdenum concentrate |
| 05/28/2003 | CN1420185A Obtaining product by solubilizing metal component from Ta-Nb metal ore contg. insoluble fluoride |
| 05/27/2003 | US6569222 Continuous single stage process for the production of molybdenum metal |
| 05/22/2003 | WO2003031665A3 Superconductor materials fabrication method using electrolytic reduction and infiltration |
| 05/21/2003 | EP1312686A2 Electrochemical dissolution process for disintegrating superalloy scraps |
| 05/21/2003 | EP1218553A4 Purification hearth |
| 05/21/2003 | CN1418985A Electrochemical decomposition method for high-temp. alloy |
| 05/20/2003 | US6566161 Tantalum sputtering target and method of manufacture |
| 05/15/2003 | WO2003040418A1 Method for producing titanium material of low oxygen content |
| 05/15/2003 | US20030092954 Nuclear fuel dissolution |
| 05/15/2003 | US20030089197 Production process for niobium powder |
| 05/13/2003 | US6563695 Powdered tantalum, niobium, production process thereof, and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium |
| 05/13/2003 | US6562312 Process for controlling the passivation of aluminum chloride formed in the chlorination of titanium-containing ores |
| 05/13/2003 | US6561259 Method of melting titanium and other metals and alloys by plasma arc or electron beam |
| 05/08/2003 | WO2003038156A1 Method a nd apparatus for smelting titanium metal |
| 05/08/2003 | US20030086864 Forming aqueous slurry of low grade molybdenite concentrates; oxidizing; filtering discharge; leaching solid filter cake with an alkaline solution; filtering second discharge; recovering the molybdenum value; crystallization |
| 05/08/2003 | US20030084754 Heating a precursor to a first temperature in the presence of a reducing gas, and increasing the temperature to reduce the precursor material and form the molybdenum (Mo) metal; Mo with novel surface area |
| 05/08/2003 | US20030084751 Electron beam melting method for metallic material |
| 05/07/2003 | EP1308526A1 Process for the production of molybdenum metal |
| 05/01/2003 | WO2002097144A3 Process for selectively removing molybdenum from solutions containing molydenum and vanadium using a xanthate complexant |
| 05/01/2003 | US20030082864 Tantalum sputtering target and method of manufacture |
| 04/17/2003 | WO2003031665A2 Superconductor materials fabrication method using electrolytic reduction and infiltration |
| 04/17/2003 | WO2003031664A1 Treatment of a wide range of titanium compounds |
| 04/17/2003 | WO2002088412A3 Tantalum and niobium billets and methods of producing the same |
| 04/17/2003 | WO2002072205A3 Method for increasing the dry residue in wet-processed cyclone dust of the chlorination of titanium ore |
| 04/17/2003 | US20030070509 Reducing niobium and/or tantalum oxides with alkali metals and/or alkaline-earth metals to obtain low-grade oxide powder; electrolyte capacitors |
| 04/17/2003 | CA2463396A1 Superconductor materials fabrication method using electrolytic reduction and infiltration |
| 04/16/2003 | EP1302263A2 Method of manufacturing niobium and/or tantalum powder |
| 04/16/2003 | CN1410209A Preparation method of high specific surface area tantalum powder and/or niobium powder |
| 04/12/2003 | CA2406932A1 Method of manufacturing niobium and/or tantalum powder |
| 04/09/2003 | EP1299185A1 Mixed metal catalyst comprising a combustible binder |
| 04/03/2003 | US20030062261 High purity zirconium or hafnium, sputtering target comprising the high purity zirconium of hafnium and thin film formed using the target, and method for producing high purity zirconium or hafnium and method for producing powder of high purity zirconium or hafnium |
| 04/03/2003 | US20030061907 Contacting a halide of the metal or mixtures thereof with a stream of liquid alkali metal or alkaline earth metal to convert the halide to the metal or alloy |
| 04/02/2003 | EP1200353B1 A process for controlling the passivation of aluminum chloride formed in the chlorination of titanium-containing ores |
| 04/02/2003 | EP1088113B1 Electrolytic process for removing a substance from solid compounds |
| 04/01/2003 | US6540851 Tantalum-silicon alloys and products containing the same and processes of making the same |
| 03/27/2003 | US20030057101 Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
| 03/27/2003 | US20030056619 Low oxygen refractory metal powder for powder metallurgy |
| 03/26/2003 | EP1144699B1 Method for extracting anions of ivb to viii metals using alkyl-substituted 1,3-diaminopropanes |
| 03/25/2003 | US6537498 Colloidal particles used in sensing arrays |
| 03/19/2003 | CN1404530A Electrolytic reduction of metal oxides such as titanium dioxide and process application |
| 03/19/2003 | CN1403605A Titanic iron ore separating process |
| 03/13/2003 | WO2003020992A1 Reaction vessel for use in producing titanium sponge, heat shielding plate provided therein, and method for producing titanium sponge |
| 03/13/2003 | WO2002061168A3 Methods of forming sputtering targets |
| 03/13/2003 | US20030047463 Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| 03/13/2003 | US20030047462 Electrolysis of mixed metal oxide feedstock in a fused metal salt or a mixture of such salts under conditions such that ionisation of oxygen rather than metal deposition occurs and that oxygen dissolves in the electrolyte |
| 03/12/2003 | CN1102872C Purification process for chromium |
| 03/11/2003 | US6531110 TiO2 containing product including rutile, pseudo-brookite and ilmenite |
| 03/05/2003 | EP1287172A2 High purity niobium and products containing the same, and methods of making the same |
| 03/05/2003 | CN1400323A Separation process of rare metal regenerated alloy by using chloridization method |
| 02/27/2003 | WO2003016594A1 Method of manufacturing titanium and titanium alloy products |
| 02/27/2003 | US20030037847 High purity tantalum, products containing the same, and methods of making the same |
| 02/25/2003 | US6524366 Tungsten carbide grains free from any binding metal comprising oxidizing tungsten carbide to form tungsten oxide; dissolving in acid, dissolving in alkaline solution, spray drying to powder, carburizing said precursor powder |
| 02/19/2003 | CN1397802A Method for separating and analyzing Nb, Ta, Zr and Hf |
| 02/18/2003 | US6521173 Low oxygen refractory metal powder for powder metallurgy |
| 02/18/2003 | US6521040 Method for processing chromium oxide-containing substances in large quantities, method for utilizing the processed substances, and products comprising the processed substances |
| 02/18/2003 | CA2101303C Production of high titania slag from ilmenite |
| 02/13/2003 | US20030031614 Forming an aqueous slurry of molybdenite concentrates; heating slurry; agitating slurry while in contact with oxygen under pressure; regulating amount of ferric iron concentration and excess sulfuric acid concentration during oxidation reaction |
| 02/13/2003 | US20030029728 Process to separate the vanadium contained in inorganic acid solutions |
| 02/12/2003 | EP1102651A4 Purification process for chromium |
| 02/12/2003 | CN1396278A Process for calcining molybdenum ore concentrate |
| 02/05/2003 | EP1281460A1 Niobium powder, sintered compact thereof and capacitor |
| 02/05/2003 | EP1280593A1 Process for the purification of flue gas |
| 02/05/2003 | CN1394974A Method for purifying chromium |
| 01/30/2003 | WO2003008335A1 Recovery of titanium from titanium bearing materials |
| 01/30/2003 | US20030021746 Thermal synthesis apparatus and process |
| 01/30/2003 | US20030019329 Method for making molten metal |
| 01/30/2003 | CA2457837A1 Recovery of titanium from titanium bearing materials |
| 01/23/2003 | WO2002072899A3 Method for recovering zirconium values from a hard rock ore containing zircon and uranium |
| 01/18/2003 | CA2635487A1 Process for the preparation of vanadyl/vanadous sulphate crystal products or solutions |
| 01/15/2003 | EP1274870A1 Ferroalloy production |
| 01/15/2003 | EP1274869A2 Tio 2? compounds obtained from a high silica content ore |
| 01/09/2003 | WO2003002785A1 Reduction of metal oxides in an electrolytic cell |
| 01/02/2003 | EP1269554A1 A method for recycling spent lithium metal polymer rechargeable batteries and related materials |
| 01/02/2003 | EP1268105A1 Method for manufacturing metal parts |
| 12/31/2002 | US6500396 Separation of titanium halides from aqueous solutions |
| 12/27/2002 | WO2002103068A1 Device for loparite concentrate and other concentrates breaking down by highly volatile acids and compounds |
| 12/27/2002 | CA2448381A1 Method for manufacturing metal nuggets |
| 12/25/2002 | CN1097094C Method for solubilization of metal component from non-soluble fluoride-contg. Ta-Nb ore |
| 12/12/2002 | US20020184972 Contacting ore of zircon, baddeleyite, and uranium at 135-255 degrees C with sulfuric acid; leach liquor of zirconium and uranium values and solids of baddeleyite and silica |
| 12/12/2002 | US20020184971 Production of metals and their alloys |
| 12/11/2002 | CN1095809C Treatment of solution cintaining iron salts |
| 12/05/2002 | WO2002097144A2 Process for selectively removing molybdenum from solutions containing molydenum and vanadium using a xanthate complexant |
| 12/05/2002 | US20020179278 Method of melting titanium and other metals and alloys by plasma arc or electron beam |
| 12/04/2002 | CN1382548A Process for preparing Nb and/or Ta powder |
| 11/28/2002 | US20020174744 Method for producing metal or metal compound comprising process of treating with fluorine and adjusted raw material used therein |
| 11/20/2002 | EP1258894A2 Capacitor grade powders |
| 11/20/2002 | EP1257679A1 Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| 11/20/2002 | EP1257678A1 Method for the manufacture of metal foams by electrolytic reduction of porous oxidic preforms |
| 11/20/2002 | EP1257677A1 Method of manufacture for ferro-titanium and other metal alloys by electrolytic reduction |
| 11/20/2002 | CN1380428A Method for extracting vanadium by roasting material containing vanadium and its equipment |
| 11/17/2002 | CA2383084A1 Capacitor grade powders |
| 11/14/2002 | WO2002090263A1 Autoclave control mechanisms for pressure oxidation of molybdenite |