Purification of sterols with activated carbon as adsorbent and chlorobenzene as desorbent
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United States of America Patent
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Nov 21, 1989
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N/A
app pub date -
Dec 11, 1987
filing date -
Dec 11, 1987
priority date (Note) -
Expired
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Abstract
An adsorptive separation process for separating sterols from a tall oil feed mixture, which process comprises contacting the feed mixture with an adsorbent comprising an activated-type carbon sieve having a pore diameter of 15-20 .ANG. and a surface area of 300-1500 m.sup.2 /g, selectively adsorbing substantially all of the sterols to be separated on the adsorbent and thereafter recovering high purity sterols. A desorption step is used to desorb the adsorbed sterols with an aromatic liquid, e.g., chlorobenzene.
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