A process for producing acetic anhydride which comprises reacting methyl acetate or dimethyl ether with carbon monoxide in the presence of a catalyst comprising (a) nickel or a nickel compound, (b) at least one halide selected from the group consisting of bromides, iodides and mixtures thereof and (c) at least one organic nitrogen group compound and together with a specific co-catalyst is disclosed. According to this invention acetic anhydride is produces by using highly active non-expensive catalyst and co-catalyst.
本发明公开了一种生产
醋酸酐的工艺,该工艺包括在催化剂存在下使
醋酸甲酯或二
甲醚与
一氧化碳反应,催化剂包括(a)
镍或
镍化合物,(b)至少一种从
溴化物、
碘化物及其混合物组成的组中选出的卤化物和(c)至少一种有机氮基团化合物,以及特定的助催化剂。根据本发明,使用高活性非昂贵催化剂和助催化剂可生产
醋酸酐。