Patents Assigned to U.S. Vanadium Corp.
  • Method for recovering vanadium from vanadium-containing ore
    Patent number: 4666512
    Abstract: Vanadium is recovered from vanadium-containing ores that have been roasted in the presence of a sodium source through heap leaching with an aqueous leaching solution so that high grade leach liquors can be obtained.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: May 19, 1987
    Assignee: U.S. Vanadium Corp.
    Inventors: Donald J. Hansen, John B. Goddard, Oreste J. Malacarne