Patents Assigned to Quebec Cartier Mining Company
  • Ore beneficiation
    Patent number: 4416768
    Abstract: Ground ore is processed in a series of three spiral concentrators wherein the initial spiral is operated to reject a tailing of a predetermined low value, the second spiral is operated to maximize the removal of locked middlings, and the third spiral is operated to obtain a concentrate of a predetermined value.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: November 22, 1983
    Assignee: Quebec Cartier Mining Company
    Inventor: Sami S. Nosseir