Patents by Inventor Ernest Philip Grazier

Ernest Philip Grazier 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 titania
    Patent number: 7485268
    Abstract: A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, separating titanyl sulfate from leach liquor, hydrolysis of the extracted titanyl sulfate, and thereafter calcining the solid phase produced in the hydrolysis step. The process is characterised by controlling the hydrolysis step and forming a selected particle size distribution of hydrated titanium oxides from titanyl sulfate.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: February 3, 2009
    Assignee: BHP Billiton Innovation Pty. Ltd.
    Inventors: Eric Girvan Roche, Alan David Stuart, Ernest Philip Grazier, Houyuan Liu