Patents Assigned to Hycroft Mining Corporation
  • Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores
    Publication number: 20190376158
    Abstract: An oxidation step for sulfide and transition ores prior to CN leaching to recover 60 to 90 percent of metals from those ores. Use of tona, soda ash or carbonate source in treating sulfide and transition ores for CN leaching recovery of metals, including gold and silver. The oxidation of sulfide and transition ores in the presence of carbonate. Low moisture content in the heap, to enhance available oxygen, during the oxidation of sulfide and transition ores in the presence of carbonate.
    Type: Application
    Filed: May 14, 2019
    Publication date: December 12, 2019
    Applicant: Hycroft Mining Corporation
    Inventor: Randy Buffington