Title:
ACETIC ACID PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/135016
Kind Code:
A1
Abstract:
Provided is a method whereby the formic acid concentration in product acetic acid can be reduced by using a simple means. This acetic acid production method is characterized by having, in the acetic acid production process, at least one step selected from a step fulfilling operating conditions (i) and a step fulfilling operating conditions (ii). (i) Operating conditions in which the hydrogen partial pressure is less than 500 kPa (absolute pressure), the carbon dioxide partial pressure is less than 70 kPa (absolute pressure), and the operation temperature exceeds 175°C; (ii) Operating conditions in which the hydrogen partial pressure is no more than 5 kPa (absolute pressure), the carbon dioxide partial pressure is less than 20 kPa (absolute pressure), and the operating temperature exceeds 100°C.
Inventors:
SHIMIZU MASAHIKO (JP)
Application Number:
PCT/JP2017/019575
Publication Date:
July 26, 2018
Filing Date:
May 25, 2017
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C07C51/12; C07B61/00; C07C51/44; C07C53/08
Domestic Patent References:
| WO2014097867A1 | 2014-06-26 | |||
| WO2016194850A1 | 2016-12-08 | |||
| WO2014115826A1 | 2014-07-31 | |||
| WO2017057085A1 | 2017-04-06 |
Foreign References:
| US20080293966A1 | 2008-11-27 | |||
| US20080293967A1 | 2008-11-27 | |||
| JP2006182691A | 2006-07-13 | |||
| JP2014520107A | 2014-08-21 | |||
| US20080293966A1 | 2008-11-27 | |||
| US20080293967A1 | 2008-11-27 |
Other References:
See also references of EP 3369722A4
Attorney, Agent or Firm:
GOTO & CO. (JP)
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