Process for recovering bitumen from tar sand

Details Process for recovering bitumen from tar sand Process for recovering bitumen from tar sand

C - Chemistry, Metallurgy

10

G

196/17

C10G 1/04 (2006.01)

Patent

CA 1129363

ABSTRACT OF THE DISCLOSURE Oil sand is mixed with steam and water in a tumbler to produce a slurry. The slurry is then transferred to the immersed portion of an aper- tured inclined surface in a water bath. The inclined surface may be in the form of a rotating drum, a tilted rotating dish or an inclined moving endless conveyor belt. The sand particles drop through the apertures and are collect- ed from the base of the bath and discarded. The bitumen moves to the sub- merged portion of the oleophilic inclined surface and attempts to pass through the apertures, it touches the surface and adheres thereto. The adhering bitumen is collected when the coated surface emerges from the slurry. The process gives a good recovery of a bitumen product which has acceptable quantities of solid and water contamination. me temperature of separation, the need for reagents, and water requirements are reduced in comparison to the prior art. The process can generally be used for separating oleophilic materials from hydrophilic materials.

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