Title:
A manufacturing method of aliphatic alkylester
Document Type and Number:
Japanese Patent JP6058972
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of recovering and reusing alcohol used in excess when higher unsaturated fatty acid alkyl ester is produced from oil containing higher unsaturated fatty acid.SOLUTION: A method of producing fatty acid alkyl ester is provided which includes the following steps (a) to (e). (a) a step of reacting oil and fat with lower alcohol in the presence of catalyst to produce fatty acid alkyl ester, (b) a step of separating unreacted lower alcohol from a reaction liquid, (c) a step of reducing the moisture content included in the unreacted lower alcohol to 0.05 mass% or less by a zeolite adsorption treatment, (d) a step of reusing the unreacted lower alcohol from which water has been removed as a whole or a part of the raw material for subsequent (a) reactions, and (e) a step of reactivating zeolite used in the (c) adsorption treatment zeolite by a heating treatment and reusing the reactivated zeolite.
Inventors:
Yasuo Umehara
Eiji Hasegawa
Takamatsu Minori
Yamada Kaichi
Eiji Hasegawa
Takamatsu Minori
Yamada Kaichi
Application Number:
JP2012236294A
Publication Date:
January 11, 2017
Filing Date:
October 26, 2012
Export Citation:
Assignee:
Nippon Suisan Co., Ltd.
International Classes:
C11C3/10
Domestic Patent References:
| JP58160543A | ||||
| JP2009155476A | ||||
| JP2012081443A | ||||
| JP2005525235A | ||||
| JP2011026394A | ||||
| JP11504513A | ||||
| JP1182391A |