Title:
A manufacturing method of dehydrated ethanol
Document Type and Number:
Japanese Patent JP6067566
Kind Code:
B2
Abstract:
A method for producing an absolute alcohol containing not more than 0.4 mg/L of acetal by subjecting a raw material alcohol to a zeolite membrane treatment, the raw material alcohol being obtained by distilling a crude alcohol, and having an alcohol concentration of not less than 95 v/v%, and the raw material alcohol containing not more than 5 mg/L of acetaldehyde and not more than 60 mg/L of a total amount of organic impurities. An absolute alcohol can be produced, which absolute alcohol is highly safe to the human body and has a quality that no off-odor is felt by human senses. In addition, the contents of diacetyl and crotonaldehyde in the raw material alcohol may be set at levels not more than particular values, respectively.
Inventors:
Hideo Sasaki
Hamano Mitsuhiro
Uchigi Masato
Hamano Mitsuhiro
Uchigi Masato
Application Number:
JP2013532676A
Publication Date:
January 25, 2017
Filing Date:
September 07, 2012
Export Citation:
Assignee:
Takara Shuzo Co., Ltd.
International Classes:
C07C29/76; C07C31/08
Domestic Patent References:
| JP2013518818A | ||||
| JP2011105601A | ||||
| JP58021629A | ||||
| JP61074568A | ||||
| JP57145822A | ||||
| JP57028016A | ||||
| JP2006263561A | ||||
| JP2010065001A | ||||
| JP2009261258A | ||||
| JP2009263355A |
Foreign References:
| WO2011097220A2 | ||||
| WO2009123222A1 |
Attorney, Agent or Firm:
Takashi Fujita
Tadashi Onami
Tadashi Onami
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