Method of beneficiating high carbonate phosphate ore

Details Method of beneficiating high carbonate phosphate ore Method of beneficiating high carbonate phosphate ore

1984-01-16

1984-12-04

Nozick, Bernard

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209166, 252 61, B03D 114

Patent

active

044863012

ABSTRACT:
A phosphate ore flotation process subjecting a phosphate ore containing carbonate mineral impurities to froth flotation in the presence of modifying agents, said modifying agents being alkyl phosphonic acids and hydrofluoric acid, and a collector, said collector being fatty acids; collecting the phosphate and carbonate minerals as rougher concentrate from the overflow; subjecting the phosphate and carbonate mineral concentrate to a differential desorption with an acid to remove the fatty acid from the surface of the phosphate mineral; removing the separated carbonate minerals from the overflow; and recovering the phosphate values in the underflow.

REFERENCES:
patent: 4287053 (1981-09-01), Lehr et al.
patent: 4317715 (1982-03-01), Hintikka et al.
patent: 4362615 (1982-12-01), Llewellyn et al.

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