Dehydration of glycols
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United States of America Patent
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-
Feb 7, 1989
Grant Date -
N/A
app pub date -
Sep 17, 1987
filing date -
Sep 17, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Concentration of aqueous solutions of ethylene glycol may be effected by a composite membrane including a glutaraldehyde--crosslined polyvinyl alcohol bonded to a porous layer of polysulfone on a polyester backing.
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