TAR SANDS RECOVERY PROCESS
    29.
    发明专利

    公开(公告)号:CA1105866A

    公开(公告)日:1981-07-28

    申请号:CA285918

    申请日:1977-09-01

    Abstract: The present invention is an improved for the recovery of bitumen from tar sand by employing a vessel containing a liquid comprising an organic phase consisting of a hydrocarbon solvent which is immiscible in water and an aqueous phase. The tar sand optiocally containing water is introduced into the organic phase and then subsequently passes into the aqueous phase.

    RECOVERY OF BITUMEN FROM TAR SANDS
    30.
    发明专利

    公开(公告)号:CA1076048A

    公开(公告)日:1980-04-22

    申请号:CA238248

    申请日:1975-10-24

    Abstract: RECOVERY OF BITUMEN FROM TAR SANDS Bitumen is separated from tar sands by contacting the tar sands with a small amount of liquid, heating the liquid treated tar sands to expand the liquid as a vapor thereby reducing the density of the bitumen and separating the bitumen from the remainder of the tar sands on the basis of density.

Patent Agency Ranking