Title:
芳香族カーボネートの製造方法
Document Type and Number:
Japanese Patent JP3556684
Kind Code:
B2
Abstract:
A process is described for preparing aromatic carbonates by transesterification of aliphatic carbonates with phenolic compounds in the presence of titanium compounds known per se, in which, before work-up, the transesterification mixture is cooled to a temperature below 120 degrees C., during which the mixture must remain liquid, the titanium-containing precipitate which is deposited is separated off, and the aromatic carbonate is then obtained by methods which are conventional per se.
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Inventors:
Hans-Joseph Bouiscyu
Norbert Cien
Johann Lefner
Norbert Cien
Johann Lefner
Application Number:
JP7511893A
Publication Date:
August 18, 2004
Filing Date:
March 10, 1993
Export Citation:
Assignee:
Bayer Aktiengesellschaft
International Classes:
C07C68/06; C07C69/96; (IPC1-7): C07C68/06; C07C69/96
Domestic Patent References:
| JP454156A | ||||
| JP58185536A |
Attorney, Agent or Firm:
Heikichi Odashima