Composite diaphragm, process for producing it and its use

Details Composite diaphragm, process for producing it and its use Composite diaphragm, process for producing it and its use

B - Operations, Transporting

01

D

B01D 69/12 (2006.01) B01D 53/22 (2006.01) B01D 67/00 (2006.01) B32B 7/02 (2006.01) C01B 13/02 (2006.01)

Patent

CA 2072016

- 13 - Abstract of the disclosure HOE 89/F 406K Composite membrane, process for its production and its use A composite membrane for gas separation having a three- layer structure, constructed from A) a supporting membrane layer made of porous polymer, B) a nonporous, gas-permeable intermediate layer, C) a permselective layer of regularly arranged organic molecules having a layer thickness of 3 to 100 nm, the layers (A) and (C) enclosinq the intermediate layer (B), wherein the permselective layer (C) is constructed from regularly arranged amphiphilic molecules which contain one or two alkyl chains each having 7 to 25 carbon atoms per polar hydrophilic group.

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