Selective separation of hydrophilic component from mixtures usin

Details Selective separation of hydrophilic component from mixtures usin Selective separation of hydrophilic component from mixtures usin

1979-10-18

1981-12-01

Halper, Robert

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209 45, 210689, 44 1A, B03B 104

Patent

active

043035051

ABSTRACT:
A process for selectively removing hydrophilic constituents from flowable hydrophobic mixtures and suspensions which comprises forming a tenacious paste by mixing water with finely divided material which is insoluble or substantially insoluble in water and in the organic liquid in the hydrophobic mixture or suspension, which is inert to the organic liquid and the hydrophobic materials in the hydrophobic mixture or suspension and which is capable of selectively adsorbing said hydrophilic constituents. The paste is formed in a mixing-type liquid-liquid contactor so that a layer of the paste forms on and clings to the impellers and other internal surfaces of the contactor. The hydrophilic mixture or suspension is placed in the contactor and the impellers are rotated at a relatively low speed so that the paste is subjected to gentle agitation by shearing and folding effects caused by rotation of the impellers and contact with the flowable hydrophobic mixture or suspension so that the hydrophilic constituents are adsorbed by the paste and are separated from the remainder of the hydrophobic mixture or suspension.

REFERENCES:
patent: 1448928 (1923-03-01), Luckenbach
patent: 1754599 (1930-04-01), Bollmann
patent: 2189698 (1940-02-01), Bierbrauer
patent: 2291417 (1942-07-01), Bierbrauer
patent: 2717696 (1955-09-01), Schubert
patent: 3399765 (1968-09-01), Puddington
patent: 3864412 (1975-02-01), Murphy
patent: 3868318 (1975-02-01), Clark
patent: 4033729 (1977-07-01), Capes

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