METHOD FOR RECOVERING BITUMEN FROM OIL SAND
    13.
    发明申请
    METHOD FOR RECOVERING BITUMEN FROM OIL SAND 审中-公开
    从石油中回收铋的方法

    公开(公告)号:US20110147276A1

    公开(公告)日:2011-06-23

    申请号:US12645547

    申请日:2009-12-23

    IPC分类号: C10G1/04

    CPC分类号: C10G1/042

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

    摘要翻译: 一方面,本发明提供一种从油砂中回收沥青的方法,所述方法包括:(a)使含沥青的油砂与环己烷和乙醇的第一溶剂混合物接触,以提供包含砂相的萃取混合物 和有机相; (b)将砂相与包含沥青,乙醇和环己烷的有机相分离; (c)从有机相中分离包含环己烷和乙醇的共沸混合物; 和(d)从有机相中回收沥青。 第一溶剂混合物包含约95至约65%的环己烷和约5至约35%的乙醇。