Patents Assigned to Western Minerals Technology Pty Ltd
  • Leaching process
    Patent number: 7713500
    Abstract: A process for the oxidative leaching of sulphide mineral species, the method characterized by the method steps of: leaching a slurry containing the mineral species in one or more reaction vessels; circulating a stream of leach liquor to a flash cooler; flashing the liquor in the flash cooler at a pressure less than atmospheric pressure so as to dissipate heat; and recirculating the liquor to the or each reaction vessel.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: May 11, 2010
    Assignee: Western Minerals Technology Pty Ltd.
    Inventor: Gary Donald Johnson
  • Leaching process
    Patent number: 7374732
    Abstract: A process for the oxidative leaching of sulphide mineral species, the method characterised by the method steps of: leaching a slurry containing the mineral species in one or more reaction vessels; circulating a stream of leach liquor to a flash cooler; flashing the liquor in the flash cooler at a pressure less than atmospheric pressure so as to dissipate heat; and recirculating the liquor to the or each reaction vessel.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: May 20, 2008
    Assignee: Western Minerals Technology Pty Ltd
    Inventor: Gary Donald Johnson