METHOD FOR CARBONYLATION OF DIMETHYL ETHER Russian patent published in 2012 - IPC B01J29/22 B01J29/24 C07C69/14 C07C67/37 

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts for producing methyl acetate and a method of producing methyl acetate. Described is a method of producing methyl acetate, involving carbonylation of dimethyl ether-based material with carbon monoxide with almost no water in the presence of a mordenite catalyst in which at least one of the following elements is introduced using an ion exchange or some other method: silver and copper, and in which platinum is also introduced into the mordenite via an ion exchange or some other method in amount of 0.05-10 mol % with respect to aluminium. Described is a catalyst for producing methyl acetate via carbonylation of dimethyl ether-based material with carbon monoxide in virtually anhydrous conditions, which is prepared via simultaneous ion exchange or saturation of the ammonium or hydrogen form of mordenite with platinum and at least one of the metals - silver and copper, drying and/or calcination of the mordenite which has been saturated or subjected to ion exchange, wherein the catalyst contains platinum in amount of 0.05-10 mol % with respect to aluminium and a catalyst prepared via ion exchange or saturation of the ammonium or hydrogen form of mordenite with at least one of the metals - silver and copper, drying and/or calcination of the mordenite which has been saturated or subjected to ion exchange to obtain copper- and/or silver-containing mordenite, followed by ion exchange or saturation of the copper- and/or silver-containing mordenite with platinum, wherein the catalyst contains platinum in amount of 0.05-10 mol % with respect to aluminium.

EFFECT: high catalytic activity.

15 cl, 1 tbl, 2 dwg, 2 ex