Title:
HOMOGENEOUS CATALYST AND HETEROGENEOUS CATALYST BASED ON IONIC LIQUID, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/114091
Kind Code:
A1
Abstract:
The present application discloses a homogeneous catalyst. The homogeneous catalyst comprises an ionic liquid comprising anions and cations; wherein the anion and the cation both contain a nitrogen-containing heterocycle, the cation has a structure represented by formula I or II, and the anion has a structure represented by formula III, IV or V. Also disclosed is a heterogeneous catalyst containing the homogeneous catalyst, a preparation method for the homogeneous catalyst and heterogeneous catalyst and a use thereof. The homogeneous catalyst and heterogeneous catalyst are used in a transesterification reaction of dimethyl carbonate with ethanol, dimethyl carbonate with diethyl carbonate, and methanol with diethyl carbonate to synthesize a high-purity methyl ethyl carbonate product. The homogeneous catalyst and heterogeneous catalyst show an extremely high reaction activity, i.e. reaction equilibrium can be reached after reaction for 5 min at 76-78ºC, and same show a high catalytic activity even at a near room temperature (30ºC) condition. The catalytic activity of the synthesized ionic liquid basically remains unchanged after being reused 20 times, showing a high stability.
Inventors:
SHI LEI (CN)
GUO JIANJUN (CN)
LI XIN (CN)
LIU MINGYU (CN)
GUO JIANJUN (CN)
LI XIN (CN)
LIU MINGYU (CN)
Application Number:
PCT/CN2019/124322
Publication Date:
June 17, 2021
Filing Date:
December 10, 2019
Export Citation:
Assignee:
UNIV SHENYANG CHEMICAL TECH (CN)
SHANDONG SHIDA SHENGHUA CHEM GROUP CO LTD (CN)
SHANDONG SHIDA SHENGHUA CHEM GROUP CO LTD (CN)
International Classes:
C07C68/06; B01J31/02; C07C69/96
Foreign References:
| CN109593170A | 2019-04-09 | |||
| CN102863339A | 2013-01-09 | |||
| CN102978012A | 2013-03-20 | |||
| CN103641720A | 2014-03-19 | |||
| CN102675028A | 2012-09-19 | |||
| CN102863339A | 2013-01-09 | |||
| CN109593170A | 2019-04-09 | |||
| CN104311407A | 2015-01-28 | |||
| CN102617365A | 2012-08-01 |
Other References:
See also references of EP 3950123A4
Attorney, Agent or Firm:
PERIODIC LAW FIRM (CN)
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