Title:
PROCESS FOR PRODUCING ACETIC ACID
Document Type and Number:
WIPO Patent Application WO/2018/008172
Kind Code:
A1
Abstract:
A process for separating or removing permanganate reducing compounds (PRC's) from a first mixture containing at least one PRC, methyl iodide, and water comprises the steps of: feeding the first mixture to a feed port of a distillation column, and distilling and separating the first mixture into an upper stream and a lower stream, wherein the distillation of the first mixture forms a second mixture at an upper position than the feed port, and the process further comprises the steps of: withdrawing the second mixture as the upper stream, and withdrawing the lower stream from a lower position than the feed port.
Inventors:
SHIMIZU MASAHIKO (JP)
MIZUTANI YOSHIHISA (JP)
MIURA HIROYUKI (JP)
MIZUTANI YOSHIHISA (JP)
MIURA HIROYUKI (JP)
Application Number:
PCT/JP2017/001213
Publication Date:
January 11, 2018
Filing Date:
January 16, 2017
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C07C51/44; C07C53/08
Domestic Patent References:
| WO2016194850A1 | 2016-12-08 | |||
| WO2014031407A1 | 2014-02-27 |
Foreign References:
| US20130310603A1 | 2013-11-21 | |||
| US20150025270A1 | 2015-01-22 | |||
| JPH0940590A | 1997-02-10 | |||
| JPH0867650A | 1996-03-12 | |||
| EP2949640A1 | 2015-12-02 |
Other References:
See also references of EP 3283455A4
Attorney, Agent or Firm:
KUWATA Mitsuo et al. (JP)
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