B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 71/40 (2006.01) B01D 61/36 (2006.01) B01D 67/00 (2006.01) B01D 69/12 (2006.01) B01D 71/42 (2006.01)
Patent
CA 2060913
MEMBRANE SEPARATION PROCESS ABSTRACT OF THE INVENTION D#79,594-F Membrane separation process is improved by use,????????? as a support membrane, of (i) a polyacrylonitrile membrane on which at least a portion of the surface -CN groups have been hydrolyzed -COOH groups or (ii) a membrane formed of polyacrylonitrile and polyacrylic acid.
Chou Kechia Joseph
Hellmuth Kathleen Mary
Smart & Biggar
Texaco Development Corporation
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