Beneficiation of high carbonate phosphate ores

Details Beneficiation of high carbonate phosphate ores Beneficiation of high carbonate phosphate ores

1980-12-22

1981-09-01

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 106

Patent

active

042870534

ABSTRACT:
A phosphate ore flotation process subjecting a phosphate ore containing carbonate mineral impurities to froth flotation in the presence of phosphate depressants, said depressants are alkyl phosphonic acids, and a carbonate collector, said collector is fatty acids, removing the separated carbonate minerals from the overflow, and recovering the phosphate value in the underflow. The process of the present invention can be performed either prior to or after the separation of siliceous matter from phosphate minerals by methods known in the art.

REFERENCES:
patent: 1813343 (1931-07-01), Cunningham
patent: 2162494 (1939-06-01), Trotter
patent: 2689043 (1954-09-01), Fischer
patent: 3113838 (1963-12-01), Perre
patent: 3462016 (1969-08-01), Bushell
patent: 3480143 (1969-11-01), Mitzmager
patent: 3929629 (1975-12-01), Griffith
patent: 4008151 (1977-02-01), Smani
patent: 4229287 (1980-10-01), Lepetic
Chem. Abst. 81, 1974, 109040m.

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