Patents by Inventor Stephen R. Young

Stephen R. Young 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 of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method
    Patent number: 6953120
    Abstract: A method of recovering metal and/or oxide thereof from a slurry is described. The method involves magnetically separating at least a portion of any magnetic impurities from the slurry and then leaching or dissolving at least a portion of any remaining magnetic impurities in a slurry. At least one chelating agent can then be added to the slurry and the solids can be recovered from the slurry by various separation techniques. The methods of the present invention are particularly useful in the recovery of tantalum and/or oxide thereof especially tantalum and/or oxide thereof having a very fine size.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: October 11, 2005
    Assignee: Cabot Corporation
    Inventors: Claude Deveau, Stephen R. Young
  • Metal recovery process
    Publication number: 20030152503
    Abstract: A method of recovering metal and/or oxide thereof from a slurry is described. The method involves magnetically separating at least a portion of any magnetic impurities from the slurry and then leaching or dissolving at least a portion of any remaining magnetic impurities in a slurry. At least one chelating agent can then be added to the slurry and the solids can be recovered from the slurry by various separation techniques. The methods of the present invention are particularly useful in the recovery of tantalum and/or oxide thereof especially tantalum and/or oxide thereof having a very fine size.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventors: Claude Deveau, Stephen R. Young