| Patents for C22B 34 - Obtaining refractory metals (6,435) |
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| 05/12/1999 | EP0915177A1 Highly purified metal and sputtering target using the same |
| 05/12/1999 | EP0915176A1 Wiring network and semiconductor package |
| 05/06/1999 | WO1999022036A1 Method for opening up materials containing noble metals by chloridization with uv radiation |
| 05/06/1999 | WO1999022035A1 Condensation chamber and method of condensing metal |
| 05/06/1999 | EP0912771A1 Process for producing a metallurgical raw material from oil containing heavy metals |
| 05/04/1999 | US5900040 Roasting of titaniferous materials |
| 04/29/1999 | WO1999020804A1 Method for dissolution of nitrogen-rich inclusions in titanium and titanium alloys |
| 04/29/1999 | WO1999007640A8 Fluidized-bed roasting of molybdenite concentrates |
| 04/29/1999 | CA2306672A1 Method for dissolution of nitrogen-rich inclusions in titanium and titanium alloys |
| 04/28/1999 | CN1043154C Method for upgrading titaniferous materials |
| 04/21/1999 | EP0909337A1 Method of making tantalum metal powder with controlled size distribution and products made therefrom |
| 04/13/1999 | CA2062104C Method of producing high-melting-point and high-toughness metal and apparatus for the same |
| 04/01/1999 | WO1999015705A1 Hard material titanium carbide based alloy, method for the production and use thereof |
| 04/01/1999 | DE19741418A1 Hartstofflegierung auf Basis von Titancarbid, Verfahren zu deren Herstellung sowie deren Verwendung A hard facing alloy based on titanium carbide, processes for their preparation and their use |
| 04/01/1999 | CA2304101A1 Method for producing an abrasive grain |
| 03/23/1999 | US5885536 Process for alkaline leaching a titaniferous material |
| 03/23/1999 | US5885324 Method for the production of synthetic rutile |
| 03/18/1999 | WO1999013135A1 Electrochemical dissolution of nuclear fuel pins |
| 03/18/1999 | DE19841774A1 Preparation of high purity tantalum oxide of optical quality |
| 03/16/1999 | US5882377 Process for smelting reduction of chromium ore |
| 03/16/1999 | US5882375 From basic steel slags containing chromium and/or vanadium |
| 03/10/1999 | EP0900855A1 Production of titanium slag |
| 03/10/1999 | EP0900854A1 Condensate retention arrangement for cold hearth refining |
| 03/10/1999 | CN1042444C Chromium ore smelting reduction process |
| 03/03/1999 | CN1042349C Method for upgrading titanium-contained materials |
| 02/25/1999 | WO1999009227A1 Titanium alloy based dispersion-strengthened composites |
| 02/25/1999 | CA2301103A1 Titanium alloy based dispersion-strengthened composites |
| 02/18/1999 | WO1999007905A1 Method of disintegrating sintered hard metal carbide bodies and recovering hard metal carbide powder |
| 02/18/1999 | WO1999007640A1 Fluidized-bed roasting of molybdenite concentrates |
| 02/10/1999 | EP0896197A1 Straight hearth furnace for titanium refining |
| 02/03/1999 | EP0763141B1 Tantalum production and product |
| 02/02/1999 | US5866067 Adding chromium oxide to melt; used for semiconductor wafer |
| 01/27/1999 | CN1041811C Process for recovering sulfuric acid from metallic sulfate-containing exhaust sulfuric acid |
| 01/21/1999 | WO1999002456A1 A process for producing an aqueous solution comprising ferric chloride |
| 01/20/1999 | EP0770149B1 Process for producing hydraulic binders and/or alloys, e.g. ferrochromium or ferrovanadium |
| 01/20/1999 | CN1041753C Process for isolating tantalum and niobium |
| 01/07/1999 | EP0889009A1 Process for removing heavy metal ions |
| 01/07/1999 | EP0889006A1 Process for the recuparation of doped tungsten |
| 12/30/1998 | EP0792247A4 Metal and fluorine values recovery from mineral ore treatment |
| 12/30/1998 | CN1041442C Roasting of titaniferous materials |
| 12/29/1998 | US5853452 Synthetic rutile production |
| 12/22/1998 | CA1340279C Sintered high titanium agllomerates |
| 12/10/1998 | WO1998055660A1 Method for purifyting titanium and apparatus for purifyting titanium |
| 12/08/1998 | US5846287 Consumable electrode method for forming micro-alloyed products |
| 12/03/1998 | WO1998054095A1 Continuous non-polluting liquid phase titanium dioxide process |
| 12/03/1998 | CA2323671A1 Continuous non-polluting liquid phase titanium dioxide process |
| 12/02/1998 | EP0881307A1 Reclamation of tungsten values from tungsten-thoria scrap by sodium hydroxide fusion |
| 12/02/1998 | CN1200309A Method for treating matter contg. chromium oxides in large scale, and method for utilizing after-treatment matter |
| 11/17/1998 | US5837635 Process for producing mixed oxide powders from deactivated denox catalysts |
| 11/05/1998 | WO1998049355A1 Process and device for recovering raw materials from waste and residues |
| 11/04/1998 | EP0874915A1 Method for separating titanium and/or vanadium from pig iron |
| 11/04/1998 | CN1198190A Method for separating titanium and/or vanadium from pig iron |
| 11/03/1998 | US5830420 Method to upgrade titania slag and resulting product |
| 10/20/1998 | US5826162 leaching of titaniferous materials |
| 10/13/1998 | US5820844 Method for the production of a purified MoO3 composition |
| 10/07/1998 | EP0869194A1 Process for preparing titanium dioxide |
| 10/07/1998 | EP0869193A1 Method for processing chromium oxide-containing substances in large quantities, method for utilizing the processed substances, and products comprising the processed substances |
| 10/06/1998 | US5819158 Sodium tungstate |
| 10/01/1998 | DE19812914A1 High purity chromium@ ingot for sputter target production |
| 09/16/1998 | EP0713537B1 A consumable electrode method for forming micro-alloyed products |
| 08/27/1998 | WO1998037249A1 Tantalum powder, method for producing same powder and sintered anodes obtained from it |
| 08/27/1998 | WO1998037248A1 Tantalum powder, method for producing same powder and sintered anodes obtained from it |
| 08/27/1998 | WO1998037022A1 Treatment of a solution containing iron salts |
| 08/19/1998 | EP0859063A1 Process for mnaufacturing and use of an additive containing titaniumdioxide |
| 08/18/1998 | US5795366 Method of manufacturing a non-sag tungsten wire for electric lamps |
| 08/05/1998 | EP0856370A1 Titanium-base powder and process for the production of the same |
| 08/05/1998 | CN1039437C MOlybdenum smelting and its comprehensive applications |
| 08/04/1998 | US5788948 Salt formation; reacting metal fluoride and alkali fluoride in water or aqueous hydrogen fluoride |
| 08/04/1998 | US5788736 Recovery of titanium values from titanium grinding swarf by electric furnace smelting |
| 07/29/1998 | EP0828552A4 Process for recovery of metal ions |
| 07/28/1998 | US5787332 Process for recovering tantalum and/or niobium compounds from composites containing a variety of metal compounds |
| 07/28/1998 | US5785731 Process of making a non-sag tungsten wire for electric lamps |
| 07/14/1998 | US5779761 Exothermic reduction of metal halide vapors by immersion into flowing melt of alkali or alkaline earth metal reducing agent without product metal or alloy powder being sintered; continuous processing |
| 07/14/1998 | CA2100442C Process for the production of vanadium containing steel alloys |
| 07/07/1998 | US5776264 Method for producing amorphous based metals |
| 07/07/1998 | US5776225 Refractory metal sponge fines composition |
| 07/01/1998 | EP0601027B1 Titanium extraction |
| 06/30/1998 | US5772726 Method of separating vanadium from ash |
| 06/30/1998 | US5772724 High purity titanium production process |
| 06/30/1998 | CA2116275C Process for the production of synthetic rutile |
| 06/25/1998 | WO1998027010A1 Synthesis of aluminium and titanium compounds |
| 06/23/1998 | CA2025114C System and method for atomizing a titanium-based material |
| 06/23/1998 | CA2006257C Extraction and purification of titanium products from titanium bearing minerals |
| 06/16/1998 | US5766478 Water-soluble polymers for recovery of metal ions from aqueous streams |
| 06/10/1998 | EP0815271A4 Fast quench reactor and method |
| 06/10/1998 | EP0591411B1 Recovery of niobium metal |
| 06/10/1998 | CN1184161A Extraction procedure for wet smelting process and its application in vanadium smelting |
| 06/09/1998 | US5762890 Zirconium and hafnium separation in chloride solutions using continuous ion exchange chromatography |
| 05/28/1998 | WO1998022632A1 Refractory metal sponge fines composition |
| 05/20/1998 | CN1182456A Fast quench reactor and method |
| 05/12/1998 | US5749937 Fast quench reactor and method |
| 05/06/1998 | EP0808377A4 Treatment of titanium-containing material |
| 04/30/1998 | WO1998017832A1 METHOD OF DE-CHROMING AND/OR DEPLETING THE MgO CONTENT OF STEEL SLAG |
| 04/21/1998 | CA2131319C Process for the recovery of titanium values |
| 04/14/1998 | CA2015213C Tic based materials and process for producing same |
| 04/09/1998 | WO1998014622A1 Process for obtaining titanium or other metals using shuttle alloys |
| 04/09/1998 | CA2267601A1 Process for obtaining titanium or other metals using shuttle alloys |
| 04/08/1998 | EP0834584A1 Recovery of tantalum and/or niobium from metalfluoride containing materials and ore residues with use of sulfuric acid roasting |
| 04/08/1998 | CN1037983C Improved process for separating ilmenite and ilemenite treated by the process |
| 04/08/1998 | CN1037982C Process for recovery of titanium from complex matrix comprising titanium nitride |