Title:
芳香族カーボネートの工業的製造法
Document Type and Number:
Japanese Patent JP4936556
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a specific process that enables an aromatic carbonate required for producing a high-quality high-performance aromatic polycarbonate to be produced industrially in a large amount (e.g. not less than 1 ton / hr) stably for a prolonged period of time (e.g. not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours) from a cyclic carbonate and an aromatic monohydroxy compound. When producing an aromatic carbonate from a cyclic carbonate and an aromatic monohydroxy compound, the above object can be attained by carrying out a step of: (I) producing a dialkyl carbonate and a diol using a reactive distillation column having a specified structure, and (II) producing the an aromatic carbonate using a first reactive distillation column having a specified structure.
Inventors:
Shinichi Fukuoka
Yuki Miyaji
Hiroshi Hachiya
Kazuhiko Matsuzaki
Yuki Miyaji
Hiroshi Hachiya
Kazuhiko Matsuzaki
Application Number:
JP2007550151A
Publication Date:
May 23, 2012
Filing Date:
December 07, 2006
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C07C68/06; C07C69/96; C07B61/00
Domestic Patent References:
| JP2003300936A | 2003-10-21 | |||
| JP2004323384A | 2004-11-18 | |||
| JP2005145841A | 2005-06-09 | |||
| JPH1192429A | 1999-04-06 | |||
| JPH04100824A | 1992-04-02 |
Foreign References:
| WO2006006588A1 | 2006-01-19 | |||
| WO2007060894A1 | 2007-05-31 | |||
| WO2007063757A1 | 2007-06-07 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Shinji Oga
Toshifumi Onuki
Shinji Oga
Toshifumi Onuki