Method for beneficiation of phosphate rock

Details Method for beneficiation of phosphate rock Method for beneficiation of phosphate rock

1981-12-14

1983-06-14

Hill, Ralph J.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209 9, 210725, B03D 306

Patent

active

043881807

ABSTRACT:
A process is disclosed which removes gangue minerals from phosphate rock by forming an aqueous slurry of phosphate rock and its impurities, then using a low boiling, nonpolar, water insoluble, bridging hydrocarbon to selectively agglomerate the phosphates.

REFERENCES:
patent: 3661254 (1972-05-01), Sirianni et al.
patent: 4080176 (1978-03-01), Verschuur
patent: 4229293 (1980-10-01), Caswell et al.
patent: 4239718 (1980-12-01), Dudt
patent: 4248698 (1981-02-01), Keller
patent: 4270927 (1981-06-01), Burk et al.
patent: 4284413 (1981-08-01), Capes et al.
patent: 4323365 (1982-04-01), Crosby et al.
Mehrotra et al., "Oil Agglomeration . . . Advantages", Mining Engineering, Aug. 1980, pp. 1230-1235.

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