Classifying – separating – and assorting solids – Plural – diverse separating operations – Including electrostatic
Patent
1980-03-04
1981-05-26
Halper, Robert
Classifying, separating, and assorting solids
Plural, diverse separating operations
Including electrostatic
209166, B03B 700
Patent
active
042697000
ABSTRACT:
Particulate glass values contained in the final inorganic fraction from comminuted municipal solid wastes and having the particle size between 10 mesh and 325 mesh are recovered by froth flotation depressing the glass and causing flotation of the gangue using as the beneficiation reagent a water compatible sulfonated hydrocarbon. Glass depression occurs by use of a mineral acid or fluoride ion and maintaining pH of the media less than about 4.
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"Proceeding of the Third Mineral Waste Utilization Symposium", Morey and Cummings, Glass Recovery from Mun Trash by Froth Flotation, 1971. _
Halper Robert
Occidental Research Corporation
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