Method for separation of heterogeneous phases

Details Method for separation of heterogeneous phases Method for separation of heterogeneous phases

1987-05-06

1989-05-09

Caldarola, Glenn

Mineral oils: processes and products

Tar sand treatment with liquid

Inorganic liquid

208425, C10G 104

Patent

active

048286885

ABSTRACT:
The invention provides a process for extracting bitumen from oil sands. The process includes the step of conditioning the oil sands by adding hot water and steam to the oil sands. The conditioned oil sands are then introduced into a separation zone. Separation of the oil sands into a bitumen froth phase, a middlings phase and a tailings phase occurs in the separation zone. Water with air dissolved therein is continuously injected under pressure upwardly through the separation zone. The water is at a low temperature relative to the oil sands. At least two of the phases are then separately withdrawn from the separation zone.

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patent: 4401552 (1983-08-01), Elanchenny et al.
patent: 4545892 (1985-10-01), Cymbalisty et al.

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