초록 ▼

A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6N, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, the ion exchange mem

A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6N, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, the ion exchange membrane having a thickness of from 0.1 to 300 m3/m2.atm.

대표청구항 ▼

A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6 meq/g H2O, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, said ion ex

A vapor permselective membrane consisting essentially of an ion exchange membrane made of a fluorine-containing polymer having a fixed ion concentration of from 1 to 6 meq/g H2O, a water content of from 20 to 250% by weight and an ion exchange capacity of from 0.6 to 2.5 meq/g dry resin, said ion exchange membrane having a thickness of from 0.1 to 300 m1 to 10% by weight, said permselective membrane having a water vapor permeation rate of at least 50 m3/m2.atm. A method for selectively permeating water vapor by means of a vapor permselective membrane as defined in claim 1, which comprises contacting a gas containing water vapor to one side of the permselective membrane and contacting a dry gas to the other side of the permselective membrane or reducing the pressure at the other side of the permselective membrane, to selectively permeate water vapor through the permselective membrane.