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Title:
ABSOLUTE ALCOHOL MANUFACTURING PROCESS AND ABSOLUTE ALCOHOL
Document Type and Number:
WIPO Patent Application WO/2013/035849
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a high-quality absolute alcohol which is highly safe and free from any foreign odor; and a manufacturing process therefor. The present invention provides an absolute alcohol manufacturing process characterized by subjecting a raw material alcohol which is obtained by distillation of a crude alcohol and which has an alcohol concentration of 95v/v% or higher, an acetaldehyde content of 5mg/L or less and a total organic impurities content of 60mg/L or less to treatment with a zeolite membrane to obtain an absolute alcohol having an acetal content of 0.4mg/L or less. According to the present invention, an absolute alcohol which has high safety for the human body and such a quality that no foreign odor is organoleptically detected can be manufactured. Further, it is preferable that the raw material alcohol has a diacetyl content and a crotonaldehyde content which do not exceed specific levels respectively.

Inventors:
SASAKI HIDEO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
Application Number:
PCT/JP2012/072927
Publication Date:
March 14, 2013
Filing Date:
September 07, 2012
Export Citation:
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Assignee:
TAKARA SHUZO CO (JP)
SASAKI HIDEO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
International Classes:
C07C29/76; B01D61/36; B01D71/02; C07C31/08
Domestic Patent References:
WO2009123222A12009-10-08
Foreign References:
JPS5821629A1983-02-08
JPS6174568A1986-04-16
JPS57145822A1982-09-09
JPS5728016A1982-02-15
JPH10147546A1998-06-02
JP2011105601A2011-06-02
JPH04193304A1992-07-13
Attorney, Agent or Firm:
FUJITA Takashi et al. (JP)
Takashi Fujita (JP)
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Claims: