Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1984-03-01
1986-05-20
Nozick, Bernard
Classifying, separating, and assorting solids
Fluid suspension
Liquid
252 61, B03D 102
Patent
active
045899800
ABSTRACT:
Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a promoter which is at least C.sub.10 aliphatic carboxylic acid or an aliphatic ester thereof which is devoid of nitrogen atoms; the hydroxylated, oxidized, or alkoxylated derivative of said acid or ester promoters; and mixtures thereof.
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Chem. Abstracts, vol. 93, No. 8, p. 226, Abstract 75578z, 8/80.
Nozick Bernard
Sherex Chemical Company Inc.
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