Conditioner for flotation of coal

Details Conditioner for flotation of coal Conditioner for flotation of coal

1981-10-14

1984-10-02

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 114

Patent

active

044746199

ABSTRACT:
The froth flotation of coal in the presence of a condensate of an alkanolamine with at least about 0.8 equivalent of a fatty acid improves the separation of carbonaceous solids possessing relatively high heat value from ash and other inert mineral matter. Flotation in the presence of this condensate is particularly effective to enhance the recovery of oxidized bituminous coal.

REFERENCES:
patent: 1761546 (1930-06-01), Trotter
patent: 2028742 (1936-01-01), Frantz
patent: 2074699 (1937-03-01), Lenher
patent: 2173448 (1939-09-01), Katzman et al.
patent: 2173909 (1939-09-01), Kritchevsky
patent: 2312414 (1943-03-01), Jayne
patent: 2389763 (1945-11-01), Cahn
patent: 2740522 (1956-04-01), Aimone
Organic Chemistry, 2nd Ed., Morrison and Boyd, Publishers Allyn and Bacon, Inc., pp. 666, 671 and 673, (Exhibit A).

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