Conditioner for flotation of coal

Classifying – separating – and assorting solids – Fluid suspension – Liquid

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252 61, B03D 102

Patent

active

047326697

ABSTRACT:
The froth flotation of coal is conducted in the presence of a conditioner of the condensate of naphthenic acid and an alkanolamine such as diethanolamine.

REFERENCES:
patent: 2112362 (1938-03-01), Gillson
patent: 2861687 (1958-11-01), Lord
patent: 4276156 (1981-06-01), Hefner, Jr.
patent: 4305815 (1981-12-01), Hefner, Jr.
patent: 4330339 (1982-05-01), Nimerick
patent: 4474619 (1984-10-01), Meyer et al.
patent: 4504385 (1985-03-01), Keys
patent: 4582596 (1986-04-01), Hansen
patent: 4606818 (1986-08-01), Keys
"Effect of Oxidation of Coals on Their Flotation Properties" by Shiou-Chuan Sun, Transactions of AIME 199: pp. 396-401 (1954).
"Organic Chemistry" by Fessenden & Fessenden, copyright 1979 by Willard Grant Press, pp. 584-586.
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd Ed., vol. 15, pp. 749-752 (1981).

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