Methods for extracting bitumen from bituminous material

Details Methods for extracting bitumen from bituminous material Methods for extracting bitumen from bituminous material

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01)

Patent

CA 2728986

Methods for preparing solvent-dry, stackable tailings. The method can include the steps of adding a first quantity of first solvent to a bitumen material to form a first mixture, separating a first quantity of bitumen-enriched solvent from the first mixture and thereby creating first solvent-wet tailings, adding a quantity of second solvent to first solvent-wet tailings to separate a first quantity of first solvent component from the first solvent-wet tailings and thereby producing second solvent-wet tailings, and adding a quantity of water to the second solvent-wet tailings to separate a first quantity of second solvent component from the second solvent- wet tailings and thereby forming solvent-dry, stackable tailings.

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