Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1980-06-20
1981-12-29
Halper, Robert
Classifying, separating, and assorting solids
Fluid suspension
Liquid
B03D 102
Patent
active
043081339
ABSTRACT:
Aromatic polycyclic, hydrocarbon compounds bearing at least one nuclear sulfonic acid or sulfonate moiety are useful as froth promoters to improve the recovery of clean coal in the froth flotation of finely-divided coal. Disulfonated diphenyl ether compounds bearing at least one nuclear alkyl group of from 10 to 22 carbon atoms are particularly efficacious.
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Glenn M. L.
Halper Robert
The Dow Chemical Company
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