Patents by Inventor Ghislain Bolduc

Ghislain Bolduc 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).

  • Process for the production of alkali metal chlorate
    Patent number: 4795535
    Abstract: At the production of alkali metal chlorate by electrolysis of alkali metal chloride in an electrolyser a part of the liquid phase from the electrolyser is brought to a crystallizer for precipitation of alkali metal chlorate crystals. The hydrogen gas formed in the electrolyser is purified from contamination of chlorine gas by contacting it with the outgoing mother liquor from the crystallizer, which has a pH in the interval 7.5 to 14. The mother liquor is then brought back to the electrolysis system.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: January 3, 1989
    Assignee: Eka Nobel AB
    Inventors: Ghislain Bolduc, Karl J. F. Wanngard