Patents by Inventor Donald E. Shanks

Donald E. Shanks has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High temperature hydrolysis of aluminum sulfate solutions
    Patent number: 4394368
    Abstract: Aqueous aluminum sulfate solution is hydrolyzed at temperatures above about 300.degree. C. to produce a basic aluminum sulfate product that is readily purified and converted to Al.sub.2 O.sub.3.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: July 19, 1983
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Donald E. Shanks
  • Recovery of zinc from zinc chloride by fused salt electrolysis
    Patent number: 3962050
    Abstract: Metallic zinc is recovered from zinc chloride by electrolysis of a molten bath mixture consisting essentially of zinc chloride and an electrolyte consisting of lithium chloride and potassium chloride. The electrolyte preferably consists of the LiCl-KCl eutectric mixture consisting of 59 mole percent LiCl and 41 mole percent KCl.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: June 8, 1976
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Donald E. Shanks, Frank P. Haver