Treatment of froth form oil sands hot water recovery process

B - Operations – Transporting – 03 – B

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196/23

B03B 9/02 (2006.01) C10G 1/04 (2006.01)

Patent

CA 1291957

Abstract of the Disclosure Solvent-diluted bitumen froths formed in the hot- water process for the recovery of bitumen from oil sands, either individually or combined, are treated with slaked lime to break the emulsion and to destabilize the clay suspensions. In this way, a clean separation of a solvent-solution layer, an aqueous sodium hydroxide solution layer and a compact clay layer is achieved.

559978

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