Membranes for ion transport and method for obtaining them

Details Membranes for ion transport and method for obtaining them Membranes for ion transport and method for obtaining them

1993-11-24

1995-06-20

Dawson, Robert A.

Liquid purification or separation

Processes

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

210651, 210490, 21050027, 21050028, 21050037, 21050028, 210638, 96 6, 264 451, 264 48, 427337, 521 27, B01D 6100

Patent

active

054258782

ABSTRACT:
The invention relates to membranes for facilitated ion transport in aqueous solutions. The membrane is an adduct of a heteropolysiloxane and a crown-ether, and contains certain ions such as picrate or fluoroborate. This membrane is efficient for the selective transport of potassium ions.

REFERENCES:
patent: 4452702 (1984-06-01), Blasius et al.
patent: 4460474 (1984-07-01), Blasius et al.
patent: 4906376 (1990-03-01), Fyles
patent: 4908135 (1990-03-01), Brisdom et al.
patent: 5265734 (1993-11-01), Linder et al.
M. Abadie, B. Sillion (Eds.), "Polyimides and Other High-Temperature Polymers", 1991, Elsevier Science Publishers B.V., Amsterdam; C. Guizard et al: `Heteropolysiloxanes Derived Membranes, Potentially for Liquid and Gas Separation`, pp. 537-544.

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