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US 5,183,546 AGranted
Optimized multiporous carbon bed for electrochemical filters
AssigneeState of Israel, Israel Atomic Energy Commission
InventorsYoram Oren, Haim Cohen, Abraham Soffer
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Abstract
An electrochemical filter which consists of a fibrous electrically conducting material to which there are bonded microscopic particles of carbon or active charcoal. A variety of fibers can be used: carbon fibers, graphite fibers, fibers of inert metal etc. A process for the production of such filters where the particles are bonded to the fibers by a pyrolyzable binder which is pyrolyzed. Electrochemical separation and filter devices based on such filter media.
Claims4
A hydrophilic electrochemical filter matrix, consisting of:
- carbon fibers in the 2 .mu. to 30 .mu. fiber diameter range;
- and,
- carbon or graphite particles in the 100 .ANG. to 5,000 .ANG. particle size range attached to the surface of said carbon fibers, such attachment of said particles resulting in an increase of the surface area of the filter from the range of abut 1 m.sup.2 /g to about 10 m.sup.2 /g, wherein the filter is characterized by a high electrical conductivity due to the carbon-particles to carbon fiber bond, and by a substantially free pathway of liquids flowing through the filter matrix.
Dependencies are inferred from the claim text.