METHOD FOR PRODUCTION OF ACETIC ACID VIA CARBONYLATION OF METHANOL AND/OR ITS REACTIVE DERIVATIVE

industrial organic synthesis. SUBSTANCE: carbonylation is carried out in reactor containing liquid reaction mixture. The latter includes iridium carbonylation catalyst and methyl iodide cocatalyst, water in limited concentrations, acetic acid, methyl acetate, at least one promoter and copromoter sel...

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Hauptverfasser: VATT ROBERT DZHON, SANLI DZHON GLEN, DITZEL' EHVERT JAN
Format: Patent
Sprache:eng
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Zusammenfassung:industrial organic synthesis. SUBSTANCE: carbonylation is carried out in reactor containing liquid reaction mixture. The latter includes iridium carbonylation catalyst and methyl iodide cocatalyst, water in limited concentrations, acetic acid, methyl acetate, at least one promoter and copromoter selected from alkali and alkali-earth metal iodides, iodide anion-releasing metal-containing complexes and salts or their mixtures. Concentration of water is equal to or below carbonylation maximum concentration. EFFECT: reduced expenses and simplified acetic acid isolation. 20 cl, 5 dwg, 7 tbl, 14 ex