Patents by Inventor Alain Mullier

Alain Mullier 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 preparing manganese nitrate solution
    Patent number: 4276268
    Abstract: A process for preparing manganese nitrate solution by leaching manganese ore containing manganese dioxide in an aqueous slurry containing dissolved nitrogen dioxide gas. The reaction is controlled by monitoring the pH of the aqueous slurry, and adjusting the relative concentration of the manganese ore containing manganese dioxide and/or the rate of addition of nitrogen dioxide containing gas, to establish and maintain the leaching reaction.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: June 30, 1981
    Assignee: Chemetals Corporation
    Inventors: Jay Y. Welsh, Alain Mullier, Pierre C. Picquet