Title:
METHOD FOR HYDROTREATING RESIDUAL SOLUTION OF BUTANOL AND 2-ETHYL HEXANOL
Document Type and Number:
WIPO Patent Application WO/2022/095917
Kind Code:
A1
Abstract:
The present invention relates to the technical field of waste liquid recycling and specifically relates to a method for hydrotreating a residual solution of butanol and 2-ethyl hexanol, comprising the following steps: a residual solution of butanol and 2-ethyl hexanol is regulated to a pH of 6-9 using an organic base, and is then hydroconverted, the hydroconverted product is separated to produce an alcohol. A preparation method provided in the present invention for the residual solution of butanol and 2-ethyl hexanol defines the use of the organic base to regulate the pH of the residual solution of butanol and 2-ethyl hexanol, the organic base provides the effect of a basic additive and promotes the efficiency of the hydroconversion of compounds such as aldehydes, ketones, and esters, and particularly esters, in the residual solution of butanol and 2-ethyl hexanol into an alcohol, thus increasing the efficiency of recycling the residual solution of butanol and 2-ethyl hexanol. Metal ions in the organic base are prevented from producing a passivation effect with respect to a hydrogenation catalyst that would reduce the efficiency of recycling the residual solution of butanol and 2-ethyl hexanol.
Inventors:
WANG ZHENFAN (CN)
LI CHUNWEI (CN)
YU HAILONG (CN)
HU WEIGUANG (CN)
HUANG ZHENNI (CN)
SONG JINGWEN (CN)
LIU GUOXIN (CN)
GU TIANYU (CN)
LI CHUNWEI (CN)
YU HAILONG (CN)
HU WEIGUANG (CN)
HUANG ZHENNI (CN)
SONG JINGWEN (CN)
LIU GUOXIN (CN)
GU TIANYU (CN)
Application Number:
PCT/CN2021/128590
Publication Date:
May 12, 2022
Filing Date:
November 04, 2021
Export Citation:
Assignee:
JILIN DOT CHEMICAL TECH CO LTD (CN)
International Classes:
C07C29/136; C07C31/12; C07C31/125
Foreign References:
| CN112321386A | 2021-02-05 | |||
| CN1730151A | 2006-02-08 | |||
| CN103449970A | 2013-12-18 | |||
| CN103553876A | 2014-02-05 | |||
| US4317918A | 1982-03-02 | |||
| CN104151138A | 2014-11-19 |
Other References:
ZHAO GANG, LI ZHISHUI;LI YUNHUI: "Refining and Recovery of C8 in Effluent from OXO Plant", TIANJIN SCIENCE & TECHNOLOGY, vol. 44, no. 10, 31 October 2017 (2017-10-31), XP055927599, ISSN: 1006-8945, DOI: 10.14099/j.cnki.tjkj.2017.10.009
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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