Patents Assigned to Geological Research Corporation
  • Recovery of tin
    Patent number: 4382856
    Abstract: The process of concentrating tin oxide minerals of fine particle size from material containing the same comprising the steps of forming an aqueous slurry of said material and subjecting said slurry to high intensity wet magnetic separation at a field strength and for a time sufficient to form a concentrate containing a major proportion of the tin oxide minerals originally present in the slurry.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: May 10, 1983
    Assignee: Geological Research Corporation
    Inventor: Nathaniel Arbiter