B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 71/76 (2006.01) B01D 61/36 (2006.01) B01D 69/12 (2006.01) C08J 5/18 (2006.01) C08L 101/12 (2006.01)
Patent
CA 2560325
The present application discloses a composite membrane comprising (a) a support member that has a plurality of pores extending through the support member and (b) a cross-linked copolymer comprising (i) a cationic monomer and an anionic monomer and/or (ii) a zwitterionic monomer, which cross-linked copolymer fills the pores of the support member, the cross-linked copolymer having a permeability for a fluid that is dependent on the polarity of the fluid, wherein the permeability increases with increasing polarity. The present application also discloses a process for the preparation of the composite membrane, a pervaporation apparatus comprising the composite membrane, and methods for the use of the composite material in separation and dehydration processes.
L'invention concerne une membrane composite comprenant (a) un élément support présentant une pluralité de pores s'étendant à travers l'élément support et (b) un copolymère réticulé comprenant (I) un monomère cationique et un monomère anionique et/ou (ii) un monomère zwitterionique. Le copolymère réticulé remplit les pores de l'élément support et présente une perméabilité à un fluide, dépendant de la polarité dudit fluide, la perméabilité augmentant à mesure que la polarité progresse. La présente demande concerne également un processus permettant de préparer la membrane composite, un dispositif de pervaporation comprenant ladite membrane composite et des procédés pour utiliser le matériau composite dans des processus de séparation et de déshydratation.
Childs Ronald F.
Yu Jie
Mcmaster University
Smart & Biggar
LandOfFree
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