Solvent extraction of oil from tar sands utilizing a chlorinated

Details Solvent extraction of oil from tar sands utilizing a chlorinated Solvent extraction of oil from tar sands utilizing a chlorinated

1976-08-23

1977-11-08

Davis, C.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 104

Patent

active

040574857

ABSTRACT:
Oil is efficiently solvent extracted from tar sands utilizing a trichloroethane solvent at mild conditions. The process preferably utilizes minor amounts of surfactant and polyelectrolytes. The process has resulted in unexpectedly high yields of oil with unexpectedly low solvent loss.

REFERENCES:
patent: 2173842 (1939-09-01), Horner
patent: 3695354 (1972-10-01), Dilgren et al.
patent: 3941679 (1976-03-01), Smith et al.

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