Patents by Inventor Robert W. Philips, Jr.

Robert W. Philips, Jr. 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 and system for recovering zirconium values from a hard rock ore containing uranium
    Patent number: 6780384
    Abstract: A method of recovering zirconium values from an ore containing zircon, baddeleyite, and uranium is disclosed. The method includes fusing the ore with soda ash and contacting the resulting fused ore with sulfuric acid, which generates an acid leach liquor that contains zirconium and uranium values and solids that comprise baddeleyite and silica. Baddeleyite is recovered by contacting it with sulfuric acid to convert baddeleyite to zirconium sulfate, which can be dissolved in the acid leach liquor. The method also includes separating zirconium from uranium by solvent extraction followed by precipitation.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 24, 2004
    Assignee: Cotter Corporation (NSL)
    Inventors: Allen L. Williams, Robert W. Philips, Jr., David R. Tierney, Daniel R. Dilday