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| Number | Title | Issue Date |
| 7156893 | Method of making niobium and other metal powders Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC le... | 01/02/2007 |
| 6264719 | Titanium alloy based dispersion-strengthened composites Titanium based metal matrix composites reinforced with ceramic particulate are well known, based on a blend of titanium alloy powders with ceramic powders, e.g., aluminum oxide powders, utilizing a low energy ball milling process, followed by cold compact... | 07/24/2001 |
| 6245211 | Process for obtaining titanium or other metals using shuttle alloys The present invention relates to a process for obtaining metals from oxides using shuttle alloys, particularly titanium metal from titanium dioxide in the form of illmenite rutile. The process can be adapted to obtain elemental metal or alloys of metals s... | 06/12/2001 |
| 6117208 | Molten salt process for producing titanium or zirconium powder Titanium metal is produced using titanium dioxide as the starting material. A molten metal collection pool is first prepared in a reaction vessel from zinc and calcium. A molten salt mixture is then added to the vessel comprised of a mixture of calcium ch... | 09/12/2000 |
| 5575831 | Method for producing hydrogen storage alloy In a method for producing a multi-component hydrogen storage alloy including metals of zirconium or vanadium, oxides of these metals is used to produce an alloy having characteristics equivalent to that produced with pure metals. It comprises steps of cal... | 11/19/1996 |
| 5098471 | Separation of magnesium from magnesium chloride and zirconium and/or hafnium subchlorides in the production of zirconium and/or hafnium sponge metal Utilization of inherent fractional distillation of magnesium and magnesium chloride in reduction to sponge metal in a vacuum distillation furnace of zirconium and/or hafnium or other refractory metal tetrachloride by the Kroll process, to separate magnesi... | 03/24/1992 |
| 4331475 | Process for aluminothermic production of chromium and chromium alloys low in nitrogen A process is provided for the aluminothermic production of low nitrogen containing chromium and chromium alloys, said chromium alloys comprising about 80% chromium, about 20% nickel and less than 0.005% nitrogen, said alloys being especially desirable for... | 05/25/1982 |
| 4192674 | Method of obtaining tantalum-niobium from ores having a high titanium content A process for obtaining metal rich in tantalum and niobium from ore having a high titanium content comprising stepwise electrothermal ore reduction in the presence of aluminum, calcium oxide and barium sulfate.... | 03/11/1980 |
| 4169722 | Aluminothermic process A method of conducting an aluminothermic reduction of an oxide of a reactive metal comprising melting in a vessel in an induction furnace a conductive susceptor metal and thereafter adding the required intimately mixed reactants to the molten mass in the ... | 10/02/1979 |
