Patents by Inventor Christy Green

Christy Green 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 recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction
    Patent number: 7736487
    Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: June 15, 2010
    Assignee: Freeport-McMoran Corporation
    Inventors: John O. Marsden, John C. Wilmot, Christy Green, Wayne W. Hazen, David R. Baughman
  • PROCESS FOR RECOVERY OF COPPER FROM COPPER-BEARING MATERIAL USING PRESSURE LEACHING, DIRECT ELECTROWINNING AND SOLUTION EXTRACTION
    Publication number: 20080023342
    Abstract: The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. In accordance with one aspect of the process, at least a portion of the residue from the pressure leaching operation is directed to a heap, stockpile or other leaching operation.
    Type: Application
    Filed: May 1, 2007
    Publication date: January 31, 2008
    Applicant: PHELPS DODGE CORPORATION
    Inventors: John Marsden, John Wilmot, Christy Green, Wayne Hazen, David Baughman