METHOD FOR CARBONYLATION OF DIMETHYL ETHER Russian patent published in 2012 - IPC C07C67/37 C07C51/09 C07C53/08 C07C69/14 

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method of increasing catalytic activity when producing methyl acetate, involving carbonylation of dimethyl ether-based material with carbon monoxide in the presence of hydrogen in virtually anhydrous conditions at temperature ranging from more than 250°C to 350°C, in the presence of a zeolite catalyst which is efficient in said carbonylation, wherein concentration of dimethyl ether is at least 1 mol % with respect to the total amount of material.

EFFECT: improved method of increasing catalytic activity when producing methyl acetate.

13 cl, 4 ex, 3 tbl, 4 dwg