Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Patent
1988-04-19
1990-05-22
Therkorn, Ernest G.
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
210490, 21050027, 21050034, 21050037, 21050039, 210654, B01D 1300, B01D 1301
Patent
active
049275402
ABSTRACT:
A reverse osmosis membrane bearing an ionic complex and a method of making the membrane is described. The ionic complex is formed from a first compound bearing at least one quaternary ammonium or pyridinium group and a second compound bearing at least one sulfonate or carboxylate group. The complex enhances solute rejection of the membrane.
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Toyobo, Abstract of Japanese Kokai, No. 172,310/E5, published Sep. 5, 1985.
Fibiger Richard F.
Wessling Ritchie A.
Whipple Sharon S.
Glenn Michael L.
Ladd Thomas A.
The Dow Chemical Company
Therkorn Ernest G.
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