Process for making acetic anhydride and acetic acid

Details Process for making acetic anhydride and acetic acid Process for making acetic anhydride and acetic acid

C - Chemistry, Metallurgy

07

C

260/529.5, 260/5

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

Patent

CA 1167064

ABSTRACT OF THE DISCLOSURE The disclosure relates to a process for making acetic anhydrid- and acetic-acid by reacting methyl acotate and/or dimethylether with carbon monoxide or mixtures of carbon monoxide and hydrogen at temperatures of 150 to 300°C, un- der reaction pressures of more than 80 bars and in the pre- sence of a catalyst system comprised of noble metals be- longing to group VIII of the Periodic System of the ele- ments, or their compounds, and optionally tertiary or qua- ternary organonitrogen or organophosphorus compounds. More particularly, the reaction is effected with the additional use of an organochlorine compound, chlorine or hydrogen chloride as a promoter.

413469

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