Methods of tar sand bitumen recovery

Details Methods of tar sand bitumen recovery Methods of tar sand bitumen recovery

1988-01-14

1992-09-01

Pal, Asok

Mineral oils: processes and products

Tar sand treatment with liquid

208391, C10G 104

Patent

active

051435985

ABSTRACT:
Methods for the recovery of bitumen from tar sands comprising the steps of mixing tar sand, solvent and a displacing amount of aqueous medium to form a mixture, followed by separating a bitumen-rich solvent phase from the mixture and recovering bitumen from the bitumen-rich solvent phase are disclosed.

REFERENCES:
patent: 4160718 (1979-07-01), Rendall
patent: 4423323 (1984-04-01), Horikoshi et al.
patent: 4424112 (1984-01-01), Randall
patent: 4427528 (1984-11-01), Lindorfer et al.
patent: 4460452 (1984-07-01), Johnson et al.
patent: 4722782 (1988-02-01), Graham et al.

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