Recycle of secondary froth in the hot water process for extracti

Details Recycle of secondary froth in the hot water process for extracti Recycle of secondary froth in the hot water process for extracti

1985-12-05

1988-10-11

Sneed, H. M. S.

Mineral oils: processes and products

Tar sand treatment with liquid

208391, C10G 100

Patent

active

047769491

ABSTRACT:
Froth, produced by induced air flotation in the hot water process circuit for extracting bitumen from tar sand, is recycled and added to the fresh slurry being introduced to the primary separation vessel. An increase in bitumen recovered as primary froth from the circuit is produced.

REFERENCES:
patent: 3526585 (1970-09-01), Camp
patent: 3607720 (1971-09-01), Paulson
patent: 4462892 (1984-07-01), Schran et al.
patent: 4474616 (1984-10-01), Smith et al.
patent: 4533459 (1985-08-01), Dente et al.

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