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Title:
METHOD AND APPARATUS FOR PURIFYING ALCOHOL
Document Type and Number:
Japanese Patent JP2014055120
Kind Code:
A
Abstract:

To purify an alcohol such as isopropyl alcohol with a high recovery rate and a high purity.

There is provided an alcohol purification apparatus for obtaining a purified alcohol from an alcohol-containing solution which comprises: a dehydrogenation membrane 33 for dehydrating the alcohol-containing solution by pervaporation or vapor permeation; first distillation means 34 for distilling the solution dehydrated with the dehydrogenation membrane 33 to obtain a purified alcohol; and second distillation means 35 for further distilling the distillation residual solution 34, where the distilled components from the second distillation means 35 is returned to the outlet side of the dehydrogenation membrane 33.


Inventors:
TAKAHASHI KAZUSHIGE
SUGAWARA HIROSHI
MURAYAMA MASAMI
Application Number:
JP2012201580A
Publication Date:
March 27, 2014
Filing Date:
September 13, 2012
Export Citation:
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Assignee:
ORGANO KK
International Classes:
C07C29/76; C07C31/10
Domestic Patent References:
JPH11276801A1999-10-12
JPH0957069A1997-03-04
JPS62161736A1987-07-17
JP2001083717A2001-03-30
JP2003212801A2003-07-30
JP2003535836A2003-12-02
JP2003112060A2003-04-15
JP2012110832A2012-06-14
Foreign References:
US4482768A1984-11-13
Other References:
JOURNAL OF THE CHINESE INSTITUTE OF CHEMICAL ENGINEERS, vol. 35(3), JPN6016014333, 2004, pages 267 - 283, ISSN: 0003300185
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata