Title:
METHOD FOR PRODUCING DIARYL CARBONATE FROM DIALKYL CARBONATE
Document Type and Number:
Japanese Patent JP2010006808
Kind Code:
A
Abstract:
To provide a method for producing diaryl carbonates from dialkyl carbonates and aromatic hydroxy compounds.
The method uses at least two reaction columns, a process section for recovering the dialkyl carbonate used in the reaction and for removing the alcohol of the reaction, one or more process steps for recovering the by-products obtained in the process, which have a boiling point between that of the dialkyl carbonate and that of the alkyl aryl carbonate formed during the production of the diaryl carbonate, and a process step for further purification of the diaryl carbonate obtained from the reaction columns.
Inventors:
DUEX ANDRE
OLF GUENTER
HALLENBERGER KASPAR
RONGE GEORG
LEIBERICH RICARDA
EYNDE JOHAN VANDEN
WUYTACK WIM
OOMS PIETER
RECHNER JOHANN
OLF GUENTER
HALLENBERGER KASPAR
RONGE GEORG
LEIBERICH RICARDA
EYNDE JOHAN VANDEN
WUYTACK WIM
OOMS PIETER
RECHNER JOHANN
Application Number:
JP2009146450A
Publication Date:
January 14, 2010
Filing Date:
June 19, 2009
Export Citation:
Assignee:
BAYER MATERIALSCIENCE AG
International Classes:
C07C68/06; C07C69/96; C07B61/00
Domestic Patent References:
| JP2009051814A | 2009-03-12 | |||
| JP2009114172A | 2009-05-28 | |||
| JPH09176094A | 1997-07-08 | |||
| JPH06184058A | 1994-07-05 | |||
| JPH0959225A | 1997-03-04 | |||
| JP2004075577A | 2004-03-11 | |||
| JP2009051814A | 2009-03-12 | |||
| JP2009114172A | 2009-05-28 | |||
| JPH09176094A | 1997-07-08 | |||
| JPH06184058A | 1994-07-05 |
Attorney, Agent or Firm:
Samejima Mutsumi
Kyousei Tamura
Genban Sanae
Kyousei Tamura
Genban Sanae