Absorbent for lower aldehydes
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United States of America Patent
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Apr 27, 1993
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N/A
app pub date -
Nov 19, 1991
filing date -
Nov 30, 1990
priority date (Note) -
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Abstract
The present invention relates to adsorbents for lower aldehydes which comprises a saturated cyclic secondary amine and a porous carrier therefor. The adsorbent according can eliminate lower aldehydes efficiently at ordinary temperature over a long period and, furthermore, is inexpensive. And the adsorbents, wherein a halogenide of alkali metal or alkaline earth metal is further supported on the porous carrier, have an excellent heat resistance.
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