Process for preparing improved cation-exchange membranes

Details Process for preparing improved cation-exchange membranes Process for preparing improved cation-exchange membranes

1975-05-28

1977-08-16

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210500M, 210506, 204180P, 204181, B01D 1300

Patent

active

040424960

ABSTRACT:
An improved cation-exchange membrane, onto which have been adhered fine particles of a crosslinked high molecular weight substance having anion-exchange groups and which can maintain a specific permselectivity for monovalent cations over a long period of time, is prepared with ease by treating a cation-exchange membrane with a suspension of fine particles of the said crosslinked high molecular weight substance.

REFERENCES:
patent: 3503789 (1970-03-01), Johnson et al.
patent: 3510418 (1970-05-01), Mizutani et al.
patent: 3723306 (1973-03-01), Bridgeford
patent: 3754055 (1973-08-01), Rembaum

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