Ion exchange membranes
AssigneeYeda Research and Development Co. Ltd.
InventorsOra Kedem, Ludmilla Schechtmann
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Abstract
The invention concerns heterogeneous ion exchange membranes used in electrodialysis which have anti-polarization and anti-fouling properties. The heterogeneous membranes of the invention comprise, in addition to ion-exchange particles embedded in the matrix, a layer of at least one hydrophilic cross-linked polymer bearing fixed electric charges. Alternatively, the heterogeneous membranes of the invention have a matrix which is itself made of at least one hydrophilic cross-linked polymer.
Claims12
A heterogeneous electrodialysis ion exchange membrane exhibiting anti-polarizing and anti-fouling properties in which ion exchange particles are embedded in an inert matrix, comprising a layer of at least one hydrophilic cross-linked polymer, said layer bearing fixed electric charges.
Dependencies are inferred from the claim text.