Title:
SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/111353
Kind Code:
A1
Abstract:
The present invention provides a method for separating an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the compound (A) from each other, which comprises: a step of separating the compound (A) and/or the compound (B) by distillation with use of a multi-stage distillation column from a mixture that contains the compound (A) and the compound (B); and a step of supplying the mixture to an inactive part that is formed within the multi-stage distillation column.
Inventors:
SHINOHATA MASAAKI (JP)
MIYAKE NOBUHISA (JP)
MIYAKE NOBUHISA (JP)
Application Number:
PCT/JP2012/058625
Publication Date:
August 01, 2013
Filing Date:
March 30, 2012
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
SHINOHATA MASAAKI (JP)
MIYAKE NOBUHISA (JP)
SHINOHATA MASAAKI (JP)
MIYAKE NOBUHISA (JP)
International Classes:
C07C263/18; C07C41/58; C07C43/10; C07C49/203; C07C49/213; C07C235/14
Foreign References:
| JP2005225879A | 2005-08-25 | |||
| JPH09301920A | 1997-11-25 | |||
| JP2001323042A | 2001-11-20 | |||
| JP2003284942A | 2003-10-07 | |||
| JPS58110526A | 1983-07-01 | |||
| JP2007521242A | 2007-08-02 |
Other References:
See also references of EP 2641896A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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Claims: