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.
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Inventors:
SASAKI HIDEO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
Application Number:
PCT/JP2012/072927
Publication Date:
March 14, 2013
Filing Date:
September 07, 2012
Export Citation:
Assignee:
TAKARA SHUZO CO (JP)
SASAKI HIDEO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
SASAKI HIDEO (JP)
HAMANO MITSUHIRO (JP)
UCHIKI MASATO (JP)
International Classes:
C07C29/76; B01D61/36; B01D71/02; C07C31/08
Domestic Patent References:
WO2009123222A1 | 2009-10-08 |
Foreign References:
JPS5821629A | 1983-02-08 | |||
JPS6174568A | 1986-04-16 | |||
JPS57145822A | 1982-09-09 | |||
JPS5728016A | 1982-02-15 | |||
JPH10147546A | 1998-06-02 | |||
JP2011105601A | 2011-06-02 | |||
JPH04193304A | 1992-07-13 |
Attorney, Agent or Firm:
FUJITA Takashi et al. (JP)
Takashi Fujita (JP)
Takashi Fujita (JP)
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Claims: