Composite membranes and their manufacture and use

Details Composite membranes and their manufacture and use Composite membranes and their manufacture and use

B - Operations, Transporting

01

D

183/1, 117/88.5

B01D 69/08 (2006.01) B01D 69/12 (2006.01)

Patent

CA 1333237

A method for producing a composite hollow fiber membrane by coating a porous hollow fiber substrate with a dilute solution of a membrane- forming composition containing a membrane-forming material and a solvent therefor by contacting the porous hollow fiber substrate with the composition, partially evaporating some of the solvent from the coated porous hollow fiber substrate, contacting the partially dried coating porous hollow fiber substrate with a coagulant and recovering the composite hollow fiber membrane. Also included are the composite hollow fiber membranes so produced and their use as permeable membranes for separating at least one fluid from at least one other fluid in a fluid mixture.

573066

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