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Title:
METHOD FOR PRODUCING SYMMETRIC DIALKYL CARBONATE AND ASYMMETRIC DIALKYL CARBONATE
Document Type and Number:
Japanese Patent JP2010168365
Kind Code:
A
Abstract:

To provide a method for industrially advantageously producing a symmetric dialkyl carbonate and an asymmetric dialkyl carbonate by transesterification between an alkylene carbonate and two or more alcohols.

The method for producing a symmetric dialkyl carbonate and an asymmetric dialkyl carbonate by transesterification between an alkylene carbonate and two or more alcohols in an identical reactor is provided. In the method, for the transesterification reaction liquid, an extractive distillation with the same alkylene glycol as an alkylene glycol formed by the transesterification as an extractive solvent, is conducted, thereby the transesterification is conducted while removing a byproduct ether compound.


Inventors:
SHIMIZU SATOSHI
Application Number:
JP2009290722A
Publication Date:
August 05, 2010
Filing Date:
December 22, 2009
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP
International Classes:
C07C68/06; C07C68/08; C07C69/96; C07C31/20
Attorney, Agent or Firm:
Tsuyoshi Shigeno