Treatment of tailings from tar sands

Details Treatment of tailings from tar sands Treatment of tailings from tar sands

C - Chemistry, Metallurgy

10

G

196/24

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

Patent

CA 1036524

ABSTRACT OF THE DISCLOSURE A process for the recovery of bitumen from the tailings ponds resultant from tar sands oil extraction, the process comprising rapidly dispersing throughout the aqueous sludge at least one additive compound in an amount sufficient to coagulate sludge solids into an inert solid material, bitumen in the aqueous sludge separating out as a froth on the surface of the aqueous sludge. Valuable oil is thus recovered from tail- ings ponds in a manner which is now economically viable on a large scale, the large space requirements and consequent pollution problems associated with the tailings ponds now being reduced.

289225

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