Title:
METHOD FOR PRODUCING ALKYLENE CARBONATE, AND APPARATUS FOR PRODUCING ALKYLENE CARBONATE
Document Type and Number:
WIPO Patent Application WO/2023/243671
Kind Code:
A1
Abstract:
Provided is a method for producing alkylene carbonate by using a first reaction vessel containing a catalyst-containing reaction liquid and gaseous carbon dioxide, the method comprising: a step (A) for supplying an alkylene oxide-containing raw material liquid through a nozzle so that the raw material liquid moves to a lower portion of the first reaction vessel along the inner surface from an upper portion of the first reaction vessel, and supplying the raw material liquid with dissolved carbon dioxide in the first reaction vessel to the reaction liquid; and a step (B) for reacting alkylene oxide and carbon dioxide in the catalyst-containing reaction liquid at the lower portion of the first reaction vessel to obtain alkylene carbonate, wherein the ratio (DL/DT) of the height DL from the liquid level in the first reaction vessel to the discharge port of the nozzle to the height DT from the bottom tangent line of the first reaction vessel to the discharge port of the nozzle is 0.1-0.7.
Inventors:
OMURA SHUMPEI (JP)
Application Number:
PCT/JP2023/022140
Publication Date:
December 21, 2023
Filing Date:
June 14, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C07D317/38
Domestic Patent References:
| WO2021078239A1 | 2021-04-29 |
Foreign References:
| JP2006104093A | 2006-04-20 | |||
| JP2006104095A | 2006-04-20 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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