Patents by Inventor Kozyrev Aleksandr BORISOVICH

Kozyrev Aleksandr BORISOVICH 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).

  • PRODUCTION OF SCANDIUM-CONTAINING CONCENTRATE AND FURTHER EXTRACTION OF HIGH-PURITY SCANDIUM OXIDE FROM THE SAME
    Publication number: 20190161828
    Abstract: The invention relates to a method for producing a scandium-containing concentrate from the wastes of alumina production and extracting high-purity scandium oxide from the same. Provided is a method for producing a scandium-containing concentrate from a red mud, wherein the Sc2O3 content therein is least of 15 wt. % (in terms of dry matter), the TiO2 content not more than 3 wt. % (in terms of dry matter), the ZrO2 content not more than 15 wt. % (in terms of dry matter), and wherein scandium in the concentrate is in form of a mixture of Sc(OH)3 hydroxide with ScOHCO3×4H2O. Also provided is a method for producing high-purity scandium oxide, with a purity of approximately 99 wt. %.
    Type: Application
    Filed: May 4, 2017
    Publication date: May 30, 2019
    Applicant: United Company RUSAL Engineering and Technology Centre LLC
    Inventors: Suss Aleksandr GENNADIEVICH, Kozyrev Aleksandr BORISOVICH, Panov Andrej VLADIMIROVICH