Method of making microporous asbestos diaphragms/cathodes for electrolytic cells
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United States of America Patent
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-
Jun 14, 1994
Issued Date -
N/A
app pub date -
Dec 4, 1991
filing date -
Aug 10, 1989
priority date (Note) -
Expired
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Abstract
Microporous diaphragms adapted for wet-consolidation with composite cathodes for use in electrolytic cells, e.g., chlorine/soda electrolysis cells, comprise a sintered, fluoropolymer microconsolidated asbestos-based microporous fibrous sheet material, such sheet material including from 3% to 35% by weight of fluoropolymer binder, from 1% to 50% by weight of a uniformly distributed gel of an oxohydroxide of at least one metal of Groups IVA, IVB, VB and VIB of the Periodic Table or of the lanthanide or actinide series thereof, and from 20% to 95% by weight of fibers, at least 1% by weight of such fibers being asbestos fibers.
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