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1. (WO2017191821) METHOD FOR PRODUCING HIGHLY UNSATURATED FATTY ACID-CONTAINING COMPOSITION

Pub. No.:    WO/2017/191821    International Application No.:    PCT/JP2017/017107
Publication Date: Fri Nov 10 00:59:59 CET 2017 International Filing Date: Tue May 02 01:59:59 CEST 2017
IPC: C11B 7/00
C07C 67/48
C11C 1/08
C12M 1/00
Applicants: NISSHIN PHARMA INC.
日清ファルマ株式会社
Inventors: HARATA, Masataka
原田 昌卓
NONAKA, Shingo
野中 信吾
KANAI, Hideki
金井 秀樹
IKEMOTO, Hiroyuki
池本 裕之
TAKEMOTO, Kenji
竹本 健二
Title: METHOD FOR PRODUCING HIGHLY UNSATURATED FATTY ACID-CONTAINING COMPOSITION
Abstract:
Provided is a method for producing a highly unsaturated fatty acid while suppressing the degradation of a silver salt solution. A method for producing a composition that contains a highly unsaturated fatty acid, wherein the method comprises: charging a silver-salt-containing aqueous solution into a reactor and causing contact to occur with a raw material solution containing an alkyl ester of a highly unsaturated fatty acid; and recovering from the reactor the aqueous solution containing the silver salt that has been brought into contact with the raw material solution. The charging of the aqueous solution containing a silver salt into the reactor and the recovering from the reactor are conducted in parallel.