Method for commercial preparation of preferred isomeric forms of ester free conjugated fatty acids with solvents systems containing polyether alcohol solvents
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United States of America Patent
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Nov 23, 2004
Grant Date -
Jan 22, 2004
app pub date -
Dec 17, 2002
filing date -
Jan 12, 2000
priority date (Note) -
Expired
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Abstract
Methods for sequential saponification and quantitative isomerization of glyceride oils containing interrupted double bond systems, with alkali in a polyether alcohol solvent to yield soaps with conjugated double bond systems are disclosed. The novel properties of the polyether alcohols allow the removal of water added with the alkali by boiling. The preferred embodiment uses a vegetable oil rich in linoleic acid such as sunflower or safflower oil, potassium hydroxide, phosphoric acid to neutralize the soaps. The reaction forms equal quantities of 9Z,11E-octadecadienoic acid and 10E,12Z-octadecadienoic acids.
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