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Title:
芳香族カーボネート類を工業的に製造する方法
Document Type and Number:
Japanese Patent JP4224104
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour from a dialkyl carbonate and an aromatic monohydroxy compound using two continuous multi-stage distillation columns. Although there have been various proposals regarding processes for the production of aromatic carbonates by means of a reactive distillation method, these have all been on a small scale and short operating time laboratory level, and there have been no disclosures whatsoever on a specific process or apparatus enabling mass production on an industrial scale. According to the present invention, there are provided two specified continuous multi-stage distillation columns, and there is also provided a specific process that enables aromatic carbonates to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour from a dialkyl carbonate and an aromatic monohydroxy compound using a apparatus in which these two continuous multi-stage distillation columns are connected together.

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Inventors:
Shinichi Fukuoka
Hiroshi Hachiya
Kazuhiko Matsuzaki
Application Number:
JP2006529056A
Publication Date:
February 12, 2009
Filing Date:
July 12, 2005
Export Citation:
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Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C07C68/06; B01D3/14; B01D3/16; B01D3/22; B01D3/26; B01D3/32; B01J19/30; B01J19/32; C07C68/08; C07C69/96; C07B61/00
Domestic Patent References:
JP4100824A
JP2003516376A
Foreign References:
WO1991009832A1
WO2006001256A1
WO2006001257A1
WO2006006566A1
WO2006006568A1
WO2006006585A1
Attorney, Agent or Firm:
Yoshiyuki Inaba
Shinji Oga
Toshifumi Onuki



 
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