Title:
芳香族カーボネートの工業的製造方法
Document Type and Number:
Japanese Patent JP4192195
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a specific process that enables an aromatic carbonate to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of no less than 1 ton per hour using a continuous multi-stage distillation column from a dialkyl carbonate and an aromatic monohydroxy compound. Although there have been many proposals regarding the process of producing the aromatic carbonate using a reactive distillation method, these have all been on a small scale and a short operating time laboratory level, According to the present invention, there is provided a specified continuous multi-stage distillation column, and there is also provided a specific process that enables the aromatic carbonate 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 the dialkyl carbonate and the aromatic monohydroxy compound.
Inventors:
Shinichi Fukuoka
Hiroshi Hachiya
Kazuhiko Matsuzaki
Hiroshi Hachiya
Kazuhiko Matsuzaki
Application Number:
JP2006528522A
Publication Date:
December 03, 2008
Filing Date:
June 20, 2005
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C07C68/06; B01D3/14; C07C68/08; C07C69/96
Domestic Patent References:
| JP2004131421A |
Foreign References:
| WO2002040439A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Shinji Oga
Toshifumi Onuki
Shinji Oga
Toshifumi Onuki