Title:
環状カーボネートの製造方法
Document Type and Number:
Japanese Patent JP7432229
Kind Code:
B2
Abstract:
To produce cyclic carbonates with excellent economical efficiency and in high yield by removing water produced as a byproduct using economical calcium carbonate.SOLUTION: A method for producing cyclic carbonates comprises a reaction step of reacting polyols and carbon dioxide in the presence of a zinc compound and calcium carbonate. The zinc compound is preferably at least one of zinc iodide, zinc trifluoromethane sulfonate, and zinc p-toluene sulfonate. The reaction step is preferably performed by using N-methyl-2-pyrrolidone as a solvent. The reaction step is preferably performed at a temperature of 165 to 180°C. The reaction step is preferably performed under a carbon dioxide pressure of 3 to 5 MPa.SELECTED DRAWING: Figure 1
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Inventors:
Joon Jeol Choi
Norihisa Fukaya
Chan Chao
Norihisa Fukaya
Chan Chao
Application Number:
JP2020039100A
Publication Date:
February 16, 2024
Filing Date:
March 06, 2020
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
C07D317/36; B01J31/22; C07D317/38
Domestic Patent References:
| JP2023146452A |
Foreign References:
| CN101029039A | ||||
| WO2018224737A1 | ||||
| WO2015527346A1 |