Recovery of bitumen from tar sands sludge using additives

Details Recovery of bitumen from tar sands sludge using additives Recovery of bitumen from tar sands sludge using additives

C - Chemistry, Metallurgy

10

G

196/24

C10G 1/04 (2006.01)

Patent

CA 1146897

ABSTRACT Improved method for the treatment of sludge from a water storage retention pond used to store the tailings discharged from a tar sands water extraction process. The method involves mixing the sludge, prior to its processing, with an effective amount of a bitumen flotation promoter, e.g., an ammonium lignin sulfonate whereby a froth is formed. The froth is separated and processed. The use of the promoter increases substantially the recovery of the bitumen from the sludge.

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