Process for the production of diaryl carbonates from carbonyl halide with recycling of at least some of the hydrogen halide byproduct and reactor therefor

摘要

A process for the production of a diaryl carbonate comprising:   contacting an aromatic hydroxy compound or a mixture thereof and its haloformate derivative with a carbonyl halide in the presence of a catalyst in a reactor system under conditions sufficient for the formation of a diaryl carbonate and a hydrogen halide;   recovering the aromatic carbonate; and   recycling at least some of the hydrogen halide within the reactor system to regenerate the carbonyl halide.