| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 08/13/2008 | EP1956102A2 Electrolytic reduction of metal oxides such as titanium dioxide and process applications |
| 08/13/2008 | EP1481103B1 Method to reduce hydrosulphide and arsine emissions during wet ore processing |
| 08/13/2008 | CN101240373A Chloride salt baking method for vanadium-containing stone coal |
| 08/12/2008 | US7410562 Thermal and electrochemical process for metal production |
| 08/07/2008 | WO2008092363A1 A method of preparing chromic oxide and ferrous oxalate from carbon ferrochrome |
| 08/07/2008 | WO2008069696A3 Method for processing ore concentrates containing iron, titanium and vanadium oxides and a device for carrying out said method |
| 08/07/2008 | US20080187455 A titanium powder or alloy powder produced by introducing a TiCl4 vapor into a continuum or flowing stream of sodium metal at a velocity not less than sonic velocity of the vapor wherein the sodium is present in an amount greater than stoichiometric |
| 08/06/2008 | CN101235439A Method for reclaiming nickel and chromium from stainless steel sludge |
| 07/31/2008 | CA2676245A1 Continuous production of titanium by the metallothermic reduction of ticl4 |
| 07/29/2008 | US7404937 Comprises tubular reactor with continuous serpentine path; comprises pretreated feedstock including ilmenite, leueoxene, or titania slag leached with hot hydrochloric acid |
| 07/24/2008 | US20080173131 Continuous production of titanium by the metallothermic reduction of ticl4 |
| 07/24/2008 | DE19841774B4 Verfahren zur Herstellung einer hochreinen Tantalverbindung A process for producing a high-purity tantalum compound |
| 07/23/2008 | EP1945394A2 Titanium boride |
| 07/23/2008 | CN201089784Y Evacuation pipe bulkhead eliminating device for producing titanium sponge |
| 07/23/2008 | CN101225481A Metallurgical extraction method for molybdenum-tungsten oxide bulk concentrate |
| 07/23/2008 | CN101225480A Combined vanadium leaching method for stone coal |
| 07/23/2008 | CN101225471A Method for recovering molybdenum from water-washing molybdenum calcine wastewater |
| 07/23/2008 | CN100404428C Niobium suboxide, process for producing the same, and capacitor comprising the same |
| 07/16/2008 | EP1944383A1 PROCESS FOR PRODUCING Ti AND APPARATUS THEREFOR |
| 07/16/2008 | CN101220418A Method for separating molybdenum, rhenium from molybdenum mineral |
| 07/16/2008 | CN100402678C Process for separation and production of titanium-rich materials from titanium-containing blast furnace slag |
| 07/10/2008 | WO2008082384A1 Processes for producing titanium dioxide |
| 07/09/2008 | EP1942210A1 METHOD FOR ELECTROLYSIS OF MOLTEN SALT, ELECTROLYTIC CELL, AND PROCESS FOR PRODUCING Ti USING SAID METHOD |
| 07/09/2008 | EP1941067A2 Titaniferous ore beneficiation |
| 07/09/2008 | EP1749110B1 Upgrading of zircon |
| 07/09/2008 | CN101218360A High-purity hafnium, process for producing the same, target and thin film comprising the high-purity hafnium |
| 07/09/2008 | CN101215648A Composite additive used for extracting vanadium from vanadium stone coal ore and using method thereof |
| 07/09/2008 | CN101215647A Roasting technique for extracting vanadium from stone coal vanadium ore |
| 07/09/2008 | CN101215646A Alum extracting technique for clay ore by wet method |
| 07/09/2008 | CN101215640A Method for reclaiming vanadium and rare earth compounds from heavy slag of blast furnace slag |
| 07/09/2008 | CN101215636A Stone coal sodium roasting vanadium-extracting method |
| 07/09/2008 | CN101215635A Method for separating tantalum and niobium from potassium metatantalate and potassium metaniobate mixture |
| 07/09/2008 | CN101215619A Method for extracting vanadium and removing phosphorus from vanadium-containing molten iron and steel-smelting technique using the same method |
| 07/03/2008 | WO2008079115A1 Direct passivation of metal powder |
| 07/03/2008 | WO2008078402A1 Method of preparing metal ingot through smelting |
| 07/03/2008 | US20080159933 Processes for producing titanium dioxide |
| 07/03/2008 | US20080156147 Methods for reducing carbon contamination when melting highly reactive alloys |
| 07/02/2008 | EP1937597A1 A process for enrichment of anatase mechanical concentrates in order to obtain synthetic rutile with low contents of rare earth and radioactive elements |
| 07/02/2008 | CN201080492Y Titanium sponge reduced distillation U -type combined device |
| 07/02/2008 | CN101210288A Method for reducing to metallic chromium the chromium oxide in slag |
| 07/02/2008 | CN101210287A Acidolysis oxidation conversion method for extracting vanadium from stone coal |
| 07/02/2008 | CN100398678C A process for simultaneous recovery of chromium and iron from chromite ore processing residue |
| 07/01/2008 | US7393497 System and filter for filtering hard alpha inclusions from reactive metal alloys |
| 06/26/2008 | US20080150201 System and filter for filtering hard alpha inclusions from reactive metal alloys |
| 06/19/2008 | US20080145687 Method of Producing Titanium |
| 06/19/2008 | DE102004023068B4 Wolframsäure und Verfahren zu deren Herstellung Acid and methods for their preparation |
| 06/18/2008 | EP1932929A1 METHOD OF ROASTING V, Mo AND Ni-CONTAINING MATTER, AND ROTARY KILN FOR ROASTING OF V, Mo AND Ni-CONTAINING MATTER |
| 06/18/2008 | CN101203621A Improved metal extraction |
| 06/12/2008 | WO2008069696A2 Method for processing ore concentrates containing iron, titanium and vanadium oxides and a device for carrying out said method |
| 06/12/2008 | WO2008068810A1 Process for recovering valuable metals from waste |
| 06/12/2008 | WO2008067614A1 Separation method for metal recovery |
| 06/11/2008 | EP1930451A1 High-purity hafnium, target and thin film comprising high-purity hafnium, and process for producing high-purity hafnium |
| 06/11/2008 | CN201072289Y Electric heating apparatus for titanium sponge reduction distillation furnace |
| 06/11/2008 | CN101195871A Method for cleaning titanium and producing titanium alloy casting ingot |
| 06/11/2008 | CN100393912C Magnesium-zirconium alloy |
| 06/05/2008 | WO2008066398A1 A method for purification of metal based alloy and intermetallic powders |
| 06/04/2008 | CN101194034A Titanium intermediate processing |
| 06/04/2008 | CN101194033A Titanium intermediate processing |
| 06/04/2008 | CN101191161A Mechanical activating strengthening alkali decomposition cleaning transforming method for hard-decomposition tantalum niobium concentrate |
| 06/03/2008 | US7381366 Apparatus for the production or refining of metals, and related processes |
| 05/30/2008 | CA2607770A1 Method for recovering valuable metals from wastes |
| 05/29/2008 | CA2670060A1 System and method for conversion of molybdenite to one or more molybdenum oxides |
| 05/28/2008 | EP1924718A2 Production of fine grain micro-alloyed niobium sheet via ingot metallurgy |
| 05/28/2008 | CN201066311Y Temperature measuring device for Ti deoxidization-distillation reactor |
| 05/28/2008 | CN201065427Y Material feeding control system for titanium reduction-distillation furnace |
| 05/28/2008 | CN101187042A Method for preparing TiC mTiO sosoloid using titanium complex ore as material |
| 05/28/2008 | CN101186969A Method for separating rare earth, iron, copper, cobalt and tungsten from alloy |
| 05/28/2008 | CN100390311C Method of combined dissolve to multiple tungsten to deeply extracting tungsten |
| 05/28/2008 | CN100390309C Method of titanium or titanium alloy melting liquid deoxidizing purification |
| 05/28/2008 | CN100390071C Process for making titanium dioxide |
| 05/22/2008 | WO2007073574A8 Molybdenum purification method |
| 05/21/2008 | EP1922425A2 Method of preparing calcium salts |
| 05/21/2008 | CN101182601A Method for extracting metal scandium and titanium from red mud |
| 05/21/2008 | CN101182600A Combined technology for separating and extracting vanadium from high calcium and high ferro steel scoria |
| 05/15/2008 | US20080110767 very effectively with a low frequency electrolysis current; current efficiencies of between 120% and 140% lead to the conclusion that a chemical dissolving process is also taking place; reversed polarity; passivation layer becomes detached with the inclusion of metallic constituents; Re, Pt, Ta, Hf |
| 05/14/2008 | EP1920087A1 Electrochemical reduction of metal oxides |
| 05/14/2008 | EP1379704B1 Method for separating zirconium and hafnium tetrachloride with the aid of a melted solvent |
| 05/14/2008 | CN101177739A Novel process for extracting vanadium from bone coal vanadium ore by resin-in-slurry method |
| 05/14/2008 | CN101177738A Novel environment-protection compound additive roasted by bone coal vanadium ore |
| 05/14/2008 | CN101177735A Process for extracting and separating nickel-phase form bone coal ore by high pressure oxygen-ammonia leaching |
| 05/07/2008 | CN101173328A Method for extracting vanadium with high-temperature wet method salting-in leaching |
| 04/30/2008 | CN101168802A Method for synthetically reclaiming iron, vanadium and titanium from vanadium titanium magnet concentrate |
| 04/30/2008 | CN101168801A Reduction and carbonization method for titanium-containing raw material |
| 04/23/2008 | CN101166838A Electrochemical reduction of metal oxides |
| 04/23/2008 | CN100383267C Reductive method for production of metallic elements such as chrome using a crucible with a perforated wall |
| 04/23/2008 | CN100383266C Titanium tetrachloride atomization method of preparing titanium sponge using magnesium |
| 04/22/2008 | US7361205 Method for production of metallic elements of high purity such as chromes |
| 04/17/2008 | US20080087139 Process for recovering titanium |
| 04/16/2008 | EP1910581A2 Process for metals recovery from spent catalyst |
| 04/16/2008 | CN101163804A Electrochemical method and apparatus for removing oxygen from a compound or metal |
| 04/16/2008 | CN101161831A Calcification vanadium slag sintering method |
| 04/10/2008 | WO2008041407A1 METHOD FOR PRODUCTION OF Ti GRANULE OR Ti ALLOY GRANULE, METHOD FOR PRODUCTION OF METAL Ti OR Ti ALLOY, AND PRODUCTION APPARATUS |
| 04/10/2008 | WO2008041007A1 A method and apparatus for producing metal powders |
| 04/09/2008 | CN101157990A Method for reducing metallic titanium from titanium-containing materials |
| 04/09/2008 | CN101157981A Method for controlling leaching of silicon impurity during vanadium extraction smelting of vanadium ore |
| 04/08/2008 | US7354472 Metalothermic reduction of refractory metal oxides |
| 04/03/2008 | WO2008039047A1 Method and apparatus for continuous producing of metallic titanium and titanium-based alloys |
| 04/02/2008 | CN100377993C Plasma synthesis of metal oxide nanopowder and apparatus therefor |
| 04/01/2008 | US7351272 Injecting, reduction halide vapor into liquid metal; controlling temperature |
| 04/01/2008 | US7351271 Method of manufacturing niobium and/or tantalum powder |