Process for the production of diaryl carbonates

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

C - Chemistry, Metallurgy

07

C

C07C 69/96 (2006.01) B01J 23/656 (2006.01) B01J 23/89 (2006.01) C07C 68/00 (2006.01) B01J 21/06 (2006.01)

Patent

CA 2179581

In a new process for the production of aromatic carbonates from aromatic hydroxycompound, CO and O2 in contact with a platinum-group metal catalyst, a co-catalyst, a quaternary salt and a base at elevated temperature and elevated pressure, an improvement is achieved if the reaction water is removed continuously from a partial flow of the reaction under reduced pressure and largely isothermal conditions and the dehydrated partial flow is again supplied to the reaction.

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