Method for the preparation of conjugated linoleic acid
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United States of America Patent
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Issued Date -
Apr 5, 2007
app pub date -
Dec 29, 2004
filing date -
Dec 30, 2003
priority date (Note) -
Abandoned
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Abstract
Methods are disclosed for the preparation of conjugated linoleic acid from linoleic acid-containing starting material(s) by alkali isomerization in apolar solvents. According to one of the method variations, the apolar solvent is an apolar aprotic solvent and an alkali metal alcoholate is used as base. In the other method variation a long chain alcohol of 6-20 carbon atoms is used as solvent, an alkali metal hydroxide or an alkali earth metal hydroxide or an alkali metal alcoholate is used as base, and the isomerization is carried out at 100-170.degree. C.
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