Process for solvent extraction of oil from oil-containing...

Details Process for solvent extraction of oil from oil-containing... Process for solvent extraction of oil from oil-containing...

E - Fixed Constructions

21

B

166/29

E21B 43/28 (2006.01) C10G 17/00 (2006.01)

Patent

CA 1112154

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.

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