作者: John Aibangbee Osaheni , Gregory Allen O'neil
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摘要: In one aspect, the present invention provides a method for recovering bitumen from an oil sand, comprising: (a) contacting bitumen-containing sand with first solvent mixture of cyclohexane and ethanol to provide extraction comprising phase organic phase; (b) separating bitumen, cyclohexane; (c) azeotropic (d) phase. The comprises about 95 65 percent 5 35 ethanol.