Method for recovering bitumen from tar sand

Details Method for recovering bitumen from tar sand Method for recovering bitumen from tar sand

1979-03-29

1982-05-25

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 100

Patent

active

043315321

ABSTRACT:
In recovering bitumen from tar sand by separation using an aqueous liquid, contamination of the aqueous phase with dispersed, finely divided solids is prevented by a mild heat treatment of the bituminous sand to reduce its water content before the sand is contacted with the aqueous liquid.

REFERENCES:
patent: 2173842 (1939-09-01), Horner
patent: 3075913 (1963-01-01), Scheffel et al.
patent: 3553099 (1971-01-01), Savage et al.
patent: 3556981 (1971-01-01), Cymbalisty
patent: 4036732 (1977-07-01), Irani et al.
patent: 4120777 (1978-10-01), Globus
patent: 4139450 (1979-02-01), Hanson et al.

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