Using Free Metal Or Alloy Reductant Patents (Class 75/614)
  • Patent number: 8066861
    Abstract: A method for producing metal powder is provided the comprising supplying a molten bath containing a reducing agent, contacting a metal oxide with the molten bath for a time and at a temperature sufficient to reduce the metal in the metal oxide to elemental metal and produce free oxygen; and isolating the elemental metal from the molten bath.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: November 29, 2011
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Jong-Hee Park
  • Patent number: 7901483
    Abstract: A process for producing titanium metal sponge from an exothermic reaction between titanium tetrachloride vapor and molten magnesium vapor, and reclaiming reactive metals from by-products of the exothermic reaction.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: March 8, 2011
    Assignee: Metals Production Research, Inc.
    Inventor: Sheldon A. Spachner
  • Publication number: 20020073617
    Abstract: A hydrogen storage bed system which includes a pressure container, a hydrogen storage alloy disposed within the pressure container, and an integrated thermal management system integrally disposed within the pressure container. The integrated thermal management system includes heat generation means, cooling means, and heat distribution means.
    Type: Application
    Filed: December 20, 2000
    Publication date: June 20, 2002
    Inventors: Stanford R. Ovshinsky, Rosa T. Young, Yang Li, Vitaliy Myasnikov, Valeriy Sobolev
  • Publication number: 20020073618
    Abstract: A hydrogen storage bed system which includes a pressure container, a hydrogen storage alloy disposed within the pressure container, and an integrated thermal management system integrally disposed within the pressure container. The integrated thermal management system includes heat generation means, cooling means adapted to use an aerosol coolant, and heat distribution means.
    Type: Application
    Filed: April 25, 2001
    Publication date: June 20, 2002
    Inventors: Stanford R. Ovshinsky, Rosa T. Young, Yang Li, Vitaliy Myasnikov, Valeriy Sobolev, Farshad Bavarian
  • Patent number: 6264719
    Abstract: 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 compacting and sintering to produce an appropriate composite. This prior art process is disadvantaged from the point of view that there are virtually no particles in the blend below the micrometer size range, which lack has a deleterious effect on the subsequent processing of the composite. This problem has been overcome by utilizing dry high energy intensive milling in the process, which has the effect of providing the necessary number of small particles below the micrometer size range as well as enhancing the reactivity of different particles with one another.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: July 24, 2001
    Assignee: Titanox Developments Limited
    Inventors: Deliang Zhang, Martyn Rohan Newby
  • Patent number: 6245211
    Abstract: 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 such as zirconium, chronium, molybdenum, tungsten, tantalum, lithium, cobalt and zinc. The process of the present invention comprises two stages, a first stage in which a metal oxide is reduced in the presence of primary shuttle material, which forms a shuttle alloy with the reduced metals, and a second stage wherein the reduced metal is separated from the shuttle alloy as a metal or alloy. Typically the primary shuttle material comprises bismuth or antimony or a mixture of the two and optionally lead. The reduction reaction may be carried out by chemical means or electrochemical means or by a combination of the two.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: June 12, 2001
    Inventor: Claude Fortin
  • Patent number: 6117208
    Abstract: 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 chloride and calcium fluoride. The titanium oxide starting material is then added along with additional calcium and the contents are mechanically stirred while maintaining at a temperature of about 800.degree. C. The titanium reacts spontaneously with the calcium, producing titanium powder and calcium oxide. The titanium becomes embedded in the molten zinc pool and settles to the bottom of the vessel, where it is removed and the titanium separated from the zinc by vacuum distillation or a suitable electrochemical process. The same process applies for producing zirconium from zirconium dioxide.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: September 12, 2000
    Inventor: Ram A. Sharma
  • Patent number: 5575831
    Abstract: 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 calcining the raw material, wherein at least one selected from the group consisting of zirconium and vanadium is included in its oxide form, at a temperature ranging from 900.degree. C. to 1300.degree. C., mixing metal calcium with said calcined raw material, and treating the mixture with heat at a temperature ranging from the melting point of metal calcium to 1300.degree. C., under inert gas atmosphere.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 19, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuharu Yamamura, Hajime Seri, Yoichiro Tsuji, Naoko Owada, Tsutomu Iwaki
  • Patent number: 5098471
    Abstract: 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 magnesium from magnesium chloride and metal subchlorides so the magnesium can be recycled in the process substantially free of the magnesium chloride and metal subchlorides. The magnesium vapor from the distillation furnace is recovered and condensed separately from the magnesium chloride and refractory metal sub-chloride vapors.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: March 24, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: Hani A. M. Abodishish, R. James Adams, Steven R. Kearl
  • Patent number: 5022935
    Abstract: A process for the deoxidation of a refractory metal containing minor concentrations of oxygen is disclosed. In this process the refractory metal is contacted with a metallic deoxidant in a dry, inert atmosphere. The metallic deoxidant and the refractory metal are heated to at least liquefy the metallic deoxidant and at least partially deoxidize the refractory metal. The refractory metal is thereafter cooled and contaminants on its surface are removed.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: June 11, 1991
    Assignee: RMI Titanium Company
    Inventor: Richard L. Fisher