Adsorbent for HCl comprising alumina and acid-treated Y zeolite
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United States of America Patent
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Aug 9, 1988
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N/A
app pub date -
Jun 2, 1987
filing date -
Nov 7, 1985
priority date (Note) -
Expired
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Abstract
A composite HCl adsorbent comprising about 50-95 wt % alumina and about 5-50 wt % Y zeolite wherein the molar ratio of SiO.sub.2 to Al.sub.2 O.sub.3 is about 4.5-6.0. The adsorbent is produced by admixing particles of alumina and acid-treated Y zeolite, agglomerating, aging and activating. The activated composite adsorbent has improved dynamic adsorption behavior for HCl compared with both the alumina and Y zeolite starting materials.
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