Electrodialysis device

Details Electrodialysis device Electrodialysis device

1975-11-17

1977-07-05

Prescott, Arthur C.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

204180P, B01D 1302

Patent

active

040338509

ABSTRACT:
An electrodialysis device comprising a plurality of adjacent compartments through which there flow dialysate and brine, respectively, each dialysate compartment being separated from the adjoining two brine compartments by an anion-selective and by a cation-selective membrane, respectively, the two terminal compartments being connected to an anode and to a cathode of a current source, wherein in the space between the membranes there is provided a continuous anion conductive element and a continuous cation conductive element, in contact with each other, each of these consisting of a different kind of ion-exchange material, the anion selective material being in contact with the anion-selective membrane, the cation selective exchange material being in contact with the cation selective membrane, the electric resistance of said elements being lower than that of the dialysate, said elements providing a path for the different ions across a larger part of the distance between the membranes.

REFERENCES:
patent: 3219567 (1965-11-01), Lacey
patent: 3291713 (1966-12-01), Parsi
patent: 3496091 (1970-02-01), McGriff et al.
patent: 3645884 (1972-02-01), Gilliland
patent: 3896015 (1975-07-01), McRae

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