Patents Represented by Attorney William Brown

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  • Amine flotation of chromite from acidic pulps
    Patent number: 4311584
    Abstract: Chromium values are recovered from pulverized chromite ore by agitating and aerating an aqueous pulp of said pulverized chromite ore containing an amine collector at a pulp acidity less than 2.5; and recovering a chromite containing froth as a concentrate.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: January 19, 1982
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Gregory E. Smith, Jerry L. Huiatt, Monte B. Shirts