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Title:
METHOD FOR PRODUCING DIALKYL CARBONATE
Document Type and Number:
WIPO Patent Application WO/2019/039317
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for efficiently producing a dialkyl carbonate. The problem can be solved by a method for producing a dialkyl carbonate by reacting urea and at least one alkyl carbamate with an aliphatic alcohol in the presence of a catalyst, the method including a gas introduction step in which a gas for expelling ammonia generated by the reaction is introduced into a reactor in which the reaction is being conducted and a discharge step in which the ammonia generated in the reactor and the introduced gas are simultaneously discharged, the reaction being conducted so that the gas introduction step satisfies relationship (1). 52.0<((A+B)×22400+L×M/17.03×22400)/L<91.0 (1) (In formula (1), A, B, L, and M are as defined above.)

Inventors:
SHIMOKAWA KEISUKE (JP)
HARADA HIDEFUMI (JP)
ISOBE TAKEHIKO (JP)
LIU HONGYU (JP)
Application Number:
PCT/JP2018/030038
Publication Date:
February 28, 2019
Filing Date:
August 10, 2018
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C07C68/00; C07C69/96; C07B61/00
Foreign References:
JPH10259164A1998-09-29
JP2007534674A2007-11-29
JP2014518553A2014-07-31
JPS55102542A1980-08-05
JPS55102543A1980-08-05
JPS5726645A1982-02-12
JPS57175147A1982-10-28
Other References:
See also references of EP 3674284A4
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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