PROCESS FOR RECOVERING BITUMEN FROM OIL SANDS ORE BY FROTHING AND ADDITION OF CEMENT POWDER

摘要

Processes are provided for recovering bitumen from oil sands ore, comprising: adding cement to an oil sands ore-water slurry; and liberating bitumen. Processes are also provided for extracting bitumen from an oil sand ore, comprising: (i) mixing oil sands ore with water or an aqueous solution to form a slurry; (ii) aerating the slurry to form a froth containing bitumen within the slurry; (iii) separating the froth from the slurry; (iv) adding cement to the slurry prior to or during one or more of the preceding steps; and (v) liberating bitumen from the froth.