Method for the preparation of cation exchange membranes doped with insoluble metal salts
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United States of America Patent
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Jan 6, 1998
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N/A
app pub date -
Jun 4, 1996
filing date -
Sep 22, 1995
priority date (Note) -
Expired
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Abstract
A method of preparing a modified cation exchange membrane in which a sulfide of silver, tungsten, molybdenum or a mixture thereof is deposited within the polymer matrix, which method comprises the steps of: i) forming within the polymer matrix of the membrane a complex of silver, tungsten, molybdenum or a mixture thereof with a water soluble compound containing an --SH group; and ii) converting the complex formed in step (i) into the insoluble sulfide of silver, tungsten, molybdenum or a mixture thereof.
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