CARBONYLATION METHOD Russian patent published in 2018 - IPC C07C67/37 C07C69/14 B01J29/06 B01J29/18 B01J29/24 B01J29/65 B01J29/70 B01J29/87 B01J37/30 B01J37/08 C01B39/26 C01B39/50 

FIELD: chemistry.

SUBSTANCE: invention relates to a process for the carbonylation of dimethyl ether with carbon monoxide in the presence of a catalyst to obtain a reaction product - methyl acetate, wherein the carbonylation process is carried out at a temperature of 240 to 320°C, in the presence of hydrogen, in a molar ratio of the amount of hydrogen to the amount of carbon monoxide greater than 1, and the catalyst is a zeolite derived from a synthesis mixture containing at least one organic structure directing agent.

EFFECT: invention also relates to a method for improving the performance of a zeolite catalyst in a process of carbonylating dimethyl ether with carbon monoxide.

38 cl, 5 tbl, 1 dwg, 5 ex