Process for making acetic anhydride and/or acetic acid...

Details Process for making acetic anhydride and/or acetic acid... Process for making acetic anhydride and/or acetic acid...

C - Chemistry, Metallurgy

07

C

260/536.5, 260/4

C07C 53/08 (2006.01) C07C 51/12 (2006.01) C07C 51/56 (2006.01) C07C 53/12 (2006.01) C07C 69/16 (2006.01)

Patent

CA 1188321

ABSTRACT OF THE DISCLOSURE The disclosure relates to a process for making acetic anhydride and/or acetic acid and/or ethylidene diacetate by reacting methyl acetate and/or dimethylether with carbon mon- oxide or mixtures of carbon monoxide and hydrogen at tempe- ratures of 50 to 300°C, under reaction pressures of 1 to 500 bars and in the presence of a catalyst system. The disclo- sure provides more particularly for the catalyst system to consist of rhenium or its compounds; an organohalogen com- pound, halogen or hydrogen halide; further carbonyl-yielding common metals or their compounds, if desired; tertiary or quaternary organic nitrogen, phosphorus arsenic or antimony compounds, if desired; and alkali metal acetate or alkali metal compounds which undergo conversion to alkali metal ace- tate under the reaction conditions, if desired.

415711

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