Membrane separation in a polymerization process

Details Membrane separation in a polymerization process Membrane separation in a polymerization process

B - Operations, Transporting

01

D

B01D 61/00 (2006.01) B01D 61/02 (2006.01) B01D 61/36 (2006.01) B01D 63/02 (2006.01) C08F 2/04 (2006.01)

Patent

CA 2421002

In the present invention at least part of a liquid mixture comprising a mixture of alkane and alkenes and less than 10,000 ppm by weight of one or more polar components having a molecular weight less than 150 as a recycle stream from a solution polymerization process is contacted with a normally solid, semi-permeable, membrane at conditions which promote selective permeation of the polar components and the polar component reduced retentate is recycled as feed for the polymerization process.

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