Patents Assigned to Newmont Mining Corporation and Newmont Gold Company
  • Process for treating ore having recoverable metal values including arsenic containing components
    Patent number: 6248301
    Abstract: Refractory gold ores are roasted in the presence of added fuels in an oxidizing atmosphere in a fluidized bed at a temperature from 450 to 650° C., which is supplied with oxygen-containing gases; to achieve a low ignition and thus low roasting temperature, sulfur, pyrite or mixtures thereof are used as added fuels.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: June 19, 2001
    Assignee: Newmont Mining Corporation and Newmont Gold Company
    Inventors: Anthony L. Hannaford, K. Marc Le Vier, Rene R. Fernandez, Gopalan Ramadorai, Arno Fitting, Gurudas Samant, Bodo Peinemann, Gebhard Bandel, Hans Kofalck