High flux RO/UF membranes

Details High flux RO/UF membranes High flux RO/UF membranes

1986-07-11

1989-12-26

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210654, 21050037, 21050038, B01D 1300

Patent

active

048896365

ABSTRACT:
Dynamic membranes are obtained by coating on a porous polymeric substrate containing functional groups a chemically reactive hydrophilic polymer from a dilute aqueous solution under pressure and crosslinking said polymer present on the porous substrate as thin layer with low molecular polyfunctional compounds. The new membranes show good solvent and compaction resistance and resistance to separation of the individual layers. They can be used in ultrafiltration and reverse osmosis processes.

REFERENCES:
patent: 3373056 (1968-03-01), Martin
patent: 3462362 (1969-08-01), Kollsman
patent: 3503789 (1970-03-01), Johnson et al.
patent: 4230463 (1980-10-01), Henis et al.
patent: 4604204 (1986-08-01), Linder et al.
patent: 4612118 (1986-09-01), Kamiyama et al.
patent: 4659474 (1987-04-01), Perry et al.

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