Process for the continuous production of diaryl carbonates

Details Process for the continuous production of diaryl carbonates Process for the continuous production of diaryl carbonates

1997-04-01

1998-10-13

Ambrose, Michael G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbonate esters

558271, 558272, 558273, C07C 6800

Patent

active

058213775

ABSTRACT:
In the process for the production of diaryl carbonates by oxidative carbonylation of the underlying aromatic hydroxy compounds in the presence of a catalyst containing a platinum group metal, a co-catalyst, a quaternary salt and a base, the catalyst is used as a supported catalyst in a stationary arrangement or in the fluid phase and the reaction is performed in the condensed phase. The co-catalyst is preferably also attached to the support.

REFERENCES:
patent: 4201721 (1980-05-01), Hallgren
patent: 5142086 (1992-08-01), King, Jr. et al.
patent: 5231210 (1993-07-01), Joyce et al.
patent: 5336803 (1994-08-01), Kezuka et al.
patent: 5380907 (1995-01-01), Mitzukami et al.
patent: 5543547 (1996-08-01), Iwane et al.
Database CAPLUS on STN.RTM., Chemical Abstracts Service, (Columbus, Ohio), No. 1980:163723; Hallgren, J.E., DE 2 815 512, Oct. 18, 1979, abstract, 1980.

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