Process for making isophorone with improved color and color stability
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Dec 3, 1997
filing date -
Dec 3, 1997
priority date (Note) -
Expired
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Abstract
The present invention is a process for the production of isophorone having improved color and color stability. Crude isophorone is selectively hydrogenated to remove color forming impurities. The product isophorone will have an APHA color of about 10 or less.
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