FIELD: chemistry.
SUBSTANCE: invention relates to a process for the preparation of methyl acetate, which comprises carbonylating dimethyl ether with carbon monoxide in the presence of hydrogen and a zeolite catalyst, wherein the process is carried out at a molar ratio of the amount of hydrogen to the amount of carbon monoxide of at least 1, and the catalyst is calcined at a temperature of about 375 to about 475°C.
EFFECT: invention also relates to a method for improving the performance of a zeolite catalyst in the preparation of methyl acetate by carbonylation of dimethyl ether with carbon monoxide in the presence of hydrogen and a zeolite catalyst.
27 cl, 4 dwg, 5 tbl, 4 ex
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