Separation of minerals

Details Separation of minerals Separation of minerals

1979-08-10

1981-06-23

Hill, Ralph J.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209155, 209207, 208 11LE, 196 1452, B03B 100, B03B 902

Patent

active

042749484

ABSTRACT:
A process is described for the separation of impurities from an aqueous slurry, dispersion or suspension. Streams of aqueous phase and an organic phase comprising a non-polar organic liquid are passed through a multi-compartment rotary contactor. A collector reagent is present during at least part of the passage of the streams through the contactor and gives the impurities a hydrophobic surface. The phases are contacted by continuously bringing the aqueous and solvent phases into contact with one another while maintaining an interface between the two phases. The two phases and the interfacial layer containing at least some of the impurities are independently withdrawn.

REFERENCES:
patent: 2686592 (1954-08-01), Miller
patent: 3247103 (1966-04-01), Shang
patent: 3432030 (1969-03-01), Olivier

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