Novel flotation agents for the beneficiation of phosphate ores

Details Novel flotation agents for the beneficiation of phosphate ores Novel flotation agents for the beneficiation of phosphate ores

1975-12-22

1977-07-12

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 102

Patent

active

040348636

ABSTRACT:
Partial esters of polycarboxylic acids having the structure ##STR1## wherein R is the radical remaining after removal of the hydroxyl group of a straight chain linear aliphatic alcohol having 12-22 carbon atoms, n is a number of 0-5, and R' is a specified bivalent grouping which are effective collectors for non-sulfide minerals in froth flotation.

REFERENCES:
patent: 2099120 (1937-11-01), Kirby
patent: 2120217 (1938-06-01), Harris
patent: 2302338 (1942-11-01), Mueller
patent: 2312466 (1943-03-01), Erickson
patent: 2362432 (1944-11-01), Cahn
patent: 2950818 (1960-08-01), Mueller
patent: 3779380 (1973-12-01), Bishop
patent: 3902602 (1975-09-01), Petrovich
patent: 3909399 (1975-09-01), Petrovich

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