Tar sands bitumen recovery from aqueous effluent

Details Tar sands bitumen recovery from aqueous effluent Tar sands bitumen recovery from aqueous effluent

C - Chemistry, Metallurgy

10

G

196/19

C10G 1/04 (2006.01) C10G 1/00 (2006.01)

Patent

CA 1088445

TITLE TAR SANDS BITUMEN RECOVERY FROM AQUEOUS EFFLUENT INVENTORS Aurelio Frederick Sirianni John A. Ripmeester ABSTRACT OF THE DISCLOSURE Tar sands bitumen is recovered concurrently from tar sands and from aqueous effluents from water-based pro- cesses for treating tar sands, by steps comprising: (a) recycling the aqueous effluent containing waste bitumen and incorporating therewith i) hydrophobic carbon, and ii) tar sands, suitably in a pre-mixed form, (b) agitating with a shearing action the ternary mixture to intimately contact the carbon with the effluent and tar sands to cause the hydrophobic surfaces to scrub or- ganic material from the effluent, and continuing agitation until the carbon and effluent-bitumen form into a unitary organic phase with the bitumen from the tar sands; (c) separating the unitary organic phase from the aqueous phase, and discharging aqueous effluent of reduced organic content; and (d) recovering carbon and hydrocarbons from the organic phase.

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