Patents Assigned to Giobiotics, Inc.
  • Patent number: 5443621
    Abstract: A method for recovering precious metals from carbonaceous ore comprising leaching the ore with a lixiviant solution and then preg-robbingly concentrating the precious metal-lixiviant complexes in solution on to the native carbonaceous component of the ore for subsequent recovery. The preg-robbing capacity of the native carbonaceous component of the ore can be augmented by adding recycled carbonaceous matter or finely ground carbon to the ore-lixiviant mixture. Furthermore, after the carbonaceous component of the ore is separated from the gangue, the gangue material can be treated in a hot CIL process to further increase the recovery of the precious metal.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 22, 1995
    Assignee: Giobiotics, Inc.
    Inventor: William J. Kohr