METHOD OF PRODUCING CARBOXYLIC ACIDS AND DERIVATIVES THEREOF Russian patent published in 2010 - IPC C07C53/08 C07C27/00 B01J29/87 B01J37/30 C07C51/12 C07C67/36 C07C67/37 C07C69/14 

FIELD: chemistry.

SUBSTANCE: method of producing acetic acid and its ester or anhydride involves bringing methanol and/or its reactive derivative selected from methyl acetate and dimethyl ether into contact with carbon monoxide in the presence of a catalyst at temperature ranging from 250 to 600°C and pressure ranging from 10 to 200 bars, and where content of iodide in the methanol and/or its reactive derivative, carbon monoxide and catalyst is less than 500 parts/million, where the catalyst essentially consists of mordenite which contains skeleton elements in form of silicon, aluminium and one or more of other elements selected from gallium and boron, and in which copper, nickel, iridium, rhodium or cobalt is added through ion exchange or some other method.

EFFECT: high selectivity with respect to the end product and high catalyst stability.

22 cl, 3 tbl, 5 ex