Process and apparatus for solvent extraction of oil from oil-con

Details Process and apparatus for solvent extraction of oil from oil-con Process and apparatus for solvent extraction of oil from oil-con

1979-02-22

1980-12-16

Levine, Herbert

Mineral oils: processes and products

Fractionation

Liquid extraction with solvents

159 17R, 202174, 203 25, C10G 2128

Patent

active

042396174

ABSTRACT:
A process for solvent extraction of oil from oil bearing diatomite ore and an apparatus for use therewith, wherein the ore is extracted by countercurrent decantation with a hydrocarbon solvent, solvent is recovered from the extract by multiple effect evaporation followed by stripping, and the spent diatomite is contacted with water to displace a major portion of the solvent therefrom, and solvent is recovered from the aqueous slurry of the spent diatomite by stripping with steam at superatmospheric pressure.

REFERENCES:
patent: 2070864 (1937-02-01), Ragatz
patent: 2177183 (1939-10-01), Kraft et al.
patent: 2806071 (1957-09-01), Findlay
patent: 3176756 (1965-04-01), Dukelow
patent: 3210269 (1965-10-01), Kosters et al.
patent: 3242970 (1966-03-01), Schmole
patent: 3893893 (1975-07-01), Miserlis et al.

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