Method for producing composition containing highly unsaturated fatty acid alkyl ester

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United States of America Patent

PATENT NO 9365800
APP PUB NO 20150252288A1
SERIAL NO

14432237

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Abstract

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The present invention provides a composition having a high content of highly unsaturated fatty acid alkyl ester. A method for producing a composition comprising a highly unsaturated fatty acid alkyl ester, the method comprising contacting a raw material comprising a highly unsaturated fatty acid alkyl ester with an aqueous solution comprising a silver salt and subsequently recovering an aqueous phase; adding an organic solvent to the aqueous phase, and subsequently recovering an organic solvent phase; and rectifying the organic solvent phase at a temperature of 170 to 190° C. and a column top vacuum degree of 1 Pa or less to recover the highly unsaturated fatty acid alkyl ester from the organic solvent phase.

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Patent Owner(s)

Patent OwnerAddress
NISSHIN PHARMA INCTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujita, Shirou Ueda, JP 18 162
Harata, Masataka Ueda, JP 8 27

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