Patents by Inventor Donald C. Winkley

Donald C. Winkley 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).

  • Method of removing phosphorus impurities from yellowcake
    Patent number: T102906
    Abstract: Phosphorus impurities are removed from yellowcake by dissolving it in hydrochloric or sulfuric acid to a U.sub.3 O.sub.8 assay of at least 150 g/l at a pH of 2; precipitating uranium peroxide with hydrogen peroxide while keeping the pH between 2.2 and 2.6 and recovering the uranium peroxide from the phosphorus impurities remaining in solution.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: April 5, 1983
    Inventors: Richard A. Brown, Donald C. Winkley