Patents Represented by Attorney William J. vanLoc

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  • Process for froth flotation of phosphate using combination collector
    Patent number: 4206045
    Abstract: Phosphate values are selectively froth floated from an aqueous ore pulp by use of a combination collector comprising a fatty acid and an N-alkyl substituted 3-sulfonic propionamide.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: June 3, 1980
    Assignee: American Cyanamid Company
    Inventors: Samuel S. Wang, Eugene L. Smith, Jr.