Method for continuous production of acetic anhydride or acetic anhydride and acetic acid mixture

摘要

The present invention relates to a process for the production of carbonitrides comprising the steps of carbonylating a mixture consisting of (i) methyl iodide and (ii) methyl acetate and / or dimethylethyr in the presence of a rhodium catalyst and cocatalyst, wherein at least 100 ppm of iron and / Wherein the concentration of mesityl oxide in the carbonylation mixture is inhibited.