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Patent Searching and Data


Title:
PROCESS FOR PRODUCING CARBONIC ESTER
Document Type and Number:
Japanese Patent JP2009242306
Kind Code:
A
Abstract:

To perform a process for industrially advantageously producing a carbonic ester from carbon dioxide and an alcohol with the use of a catalyst comprising a metallic compound or a metallic compound and an acidic compound and an organic dehydrating agent as a continuous process.

In the process for producing a carbonic ester from carbon dioxide and an alcohol in the presence of a catalyst comprising a metallic compound or a metallic compound and an acidic compound and an organic dehydrating agent, an acetal having a reaction equilibrium constant with water at a reaction temperature of 5.0103 to 1.0106 and a difference in the boiling point between itself and the carbonic ester formed of not less than 10C is used as the organic dehydrating agent. In this reaction, a reaction mixture comprising the organic dehydrating agent and a water reaction product is obtained, and from this reaction mixture, a distillate having the carbonic ester as the main component is separated, and the organic dehydrating agent and the water reaction product in the residual fluid are dehydrated to regenerate the organic dehydrating agent, and the regenerated organic dehydrating agent is recycled to the reaction step.


Inventors:
TAKANO KAZUFUMI
YAMAMOTO SHOJI
SAI JUNTETSU
YASUDA HIROYUKI
SAKAKURA TOSHIYASU
KANAMARU TAKASHI
Application Number:
JP2008091367A
Publication Date:
October 22, 2009
Filing Date:
March 31, 2008
Export Citation:
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Assignee:
NAT INST OF ADV IND & TECHNOL
MITSUBISHI CHEM CORP
International Classes:
C07C68/04; C07C69/96; C07B61/00
Attorney, Agent or Firm:
Tsuyoshi Shigeno