Solvent extraction process for recovering bitumen from tar sand

Details Solvent extraction process for recovering bitumen from tar sand Solvent extraction process for recovering bitumen from tar sand

1984-02-27

1987-06-30

Pal, Asok

Mineral oils: processes and products

Tar sand treatment with liquid

208391, C10G 104

Patent

active

046768890

ABSTRACT:
Bitumen recovered from tar sand by direct solvent extraction followed by washing of the sand tailings with countercurrent solvent flow and a solvent/aqueous phase separation step to recover solvent and residual bitumen.

REFERENCES:
patent: 2921010 (1960-01-01), Sherborne
patent: 3070541 (1962-12-01), Price
patent: 4399314 (1983-08-01), Child

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