Phosphate flotation with dibasic acids

Details Phosphate flotation with dibasic acids Phosphate flotation with dibasic acids

1980-07-07

1981-11-17

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 100

Patent

active

043010032

ABSTRACT:
A phosphate ore fllotation process subjects a phosphate ore containing silica and silicates to froth flotation in the presence of a collector, said collector being a C.sub.36 high molecular weight dibasic acid comprising two carboxylic functional groups, recovering the phosphate concentrate from the overflow, and removing the separated silica and silicates in the underflow. The dibasic acids should be used in conjunction with fuel oil, not only to reduce the reagent consumption, but also to increase the grade and recovery of phosphate concentrate. The selectivity of some of these collectors is so great than an acceptable phosphate rock concentrate can be obtained from the phosphate ore in a single anionic circuit.

REFERENCES:
patent: 2165268 (1939-07-01), Vogel-Jorgensen
patent: 2173909 (1939-09-01), Kritchevsky
patent: 3260365 (1966-07-01), Dickson
patent: 3779380 (1973-12-01), Bishop
patent: 4069235 (1978-01-01), Suzuki
patent: 4139487 (1979-02-01), Holme
Chem. Abst., 64, 1966, 6158h.
Chem. Abst., 85, 1976, 7806f.

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