FIELD: chemistry.
SUBSTANCE: invention relates to an improved carbonylation method intended for producing a carbonylation product through reaction of carbon monoxide with raw material which contains alcohol and/or reactive derivative thereof, in vapour phase using a heterogeneous catalyst in form heteropoly acid which undergoes ion exchange with one or more metals selected from a group comprising rhodium, iridium, copper and palladium, and a group IA metal selected from lithium, sodium, potassium and rubidium, or in which these metals are included, where the heteropoly acid has formula H3M12XO40, where M denotes tungsten, molybdenum, chromium, vanadium, tantalum or niobium and X denotes phosphorus or silicon.
EFFECT: method provides high conversion of the methanol reagent and longer service life of the catalyst.
28 cl, 1 tbl
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