Membrane process for treating a mixture containing dewaxed...

B - Operations – Transporting – 01 – D

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B01D 71/70 (2006.01) B01D 61/02 (2006.01) C08G 77/48 (2006.01) C10G 31/11 (2006.01) C10G 73/06 (2006.01)

Patent

CA 2052550

ABSTRACT OF THE INVENTION D#79,546 Charge containing dewaxed oil and dewaxing solvent (typically methyl ethyl ketone and toluene) is treated to separate dewaxing solvent by use of a separating elastomer membrane barrier of a polysiloxane which has been cross-linked as with toluene diisocyanate, adipoyl dichloride, a dialkoxy silane, or a diacetoxy silane.

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