Conditioner for flotation of oxidized coal

Details Conditioner for flotation of oxidized coal Conditioner for flotation of oxidized coal

1979-12-28

1981-03-03

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, B03D 102

Patent

active

042539447

ABSTRACT:
Certain condensation products of a fatty acid or fatty acid ester and a hydroxyalkylated alicyclic nitrogen-containing compound are useful as conditioners to improve the recovery of clean coal in a froth flotation process. The presence of these condensation products in the flotation medium is particularly effective to enhance the recovery of oxidized bituminous coal.

REFERENCES:
patent: 2238929 (1941-04-01), Cahn
patent: 2312387 (1943-03-01), Christmann
patent: 2336015 (1943-12-01), Jayne
patent: 2362276 (1944-11-01), Jayne
patent: 2508652 (1950-05-01), Ross
patent: 2541260 (1951-02-01), Malkemus
patent: 2578790 (1951-12-01), Dune
patent: 2713582 (1955-07-01), Smith

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