Process for removing polysorbitols from sorbitan esters
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United States of America Patent
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Jan 20, 2004
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N/A
app pub date -
Oct 7, 1997
filing date -
Oct 7, 1997
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Expired
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Abstract
A process for removing polyol impurities from a sorbitan ester solution involving: (a) providing a sorbitan ester solution containing polyol impurities; (b) adding to the sorbitan ester solution a clarifying-effective amount of a silica component; (c) adsorbing the polyol impurities from the sorbitan ester solution onto the silica to form a mixture of sorbitan ester and polyol-containing silica; and (d) removing the polyol-containing silica from the sorbitan ester solution.
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