Apparatus for extracting bitumen from tar sand

Details Apparatus for extracting bitumen from tar sand Apparatus for extracting bitumen from tar sand

1980-04-02

1982-01-19

Garris, Bradley

Mineral oils: apparatus

Solvent extraction

202169, 202170, 422269, 422273, 422280, 422281, 422283, B01D 1102, C10B 118, C10B 308

Patent

active

043115616

ABSTRACT:
A method and apparatus for extracting bitumen from tar sand utilizes a plurality of individually sealed pressure adjusted interconnected extraction chambers in which the tar sand flows countercurrent to the flow of solvent with mixing in each extraction chamber of solvent and tar sand. Tar sand is provided to the first of the extraction chambers and after removal of a portion of the bitumen is carried by a conveyor and disposed into the next chamber where further bitumen is extracted and so on through the plurality of chambers until all the bitumen is extracted and the sand and remaining solvent then conveyed into a last chamber where the sand and solvent is treated with hot water to remove solvent and pure sand is discharged.

REFERENCES:
patent: 1024230 (1912-04-01), Flood
patent: 1862945 (1932-06-01), Schlotterhose
patent: 2377136 (1945-05-01), Dinley et al.
patent: 3226202 (1965-12-01), Nagelvoort
patent: 3856474 (1974-12-01), Pittman et al.
patent: 3941679 (1976-03-01), Smith et al.
patent: 4120775 (1978-10-01), Murray et al.

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