Patents Assigned to PGM Refining Inc.
  • Purification of metals from mixtures thereof
    Patent number: 7044995
    Abstract: A process for preparing a pure PGM (platinum group metal) from a material containing a plurality of PGM compounds, wherein the PGM is selected from the group consisting of Pt, Pd, Os, Ir, Ru, Rh and Re, and the process includes initially forming the PGM in activated form by reduction of PGM ions in aqueous solution at pH 6–8 by a reducing agent, preferably, hydrogen.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: May 16, 2006
    Assignee: PGM Refining Inc.
    Inventors: Kamran M. Khozan, Dmitri S. Terekhov, Victor E. Nanthakumar, Sergiy Kovtun