Occidental Petroleum

Gary P Van Tighem

William R White

Particulate glass values contained in the final inorganic fraction from comminuted municipal wastes and having the particle size below 10 mesh, preferably between about 325 to about 20 mesh, are recovered by froth flotation by activating the glass surface with a bi or trivalent metal ion and using as the beneficiation reagent a water compatible sulfonated hydrocarbon.

Flotation separation of glass from a mixture of comminuted inorganic

Particulate glass values contained in the final inorganic fraction from comminuted municipal wastes and having the particle size between about 200 to about 20 mesh are recovered by froth flotation by activating the glass surface with a bi or trivalent metal ion and using as the beneficiation reagent a water compatible sulfonated hydrocarbon.

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Ontario, CA, United States of America

Gary P Van Tighem