CONTINUOUS PROCESS FOR PRODUCTION OF ACETIC ACID AND/OR METHYL ACETATE VIA CARBONYLATION OF METHANOL OR DERIVATIVE THEREOF Russian patent published in 2006 - IPC C07C51/12 C07C53/08 C07C69/12 

FIELD: industrial organic synthesis.

SUBSTANCE: invention relates to continuously producing acetic acid and/or methyl acetate via liquid-phase carbonylation of methanol or a suitable derivative thereof with carbon monoxide in presence of water and catalytic system. Reactor temperature and feeding rate of methanol or suitable methanol derivative are governed by carbon monoxide feeding rate and at least one of parameters determining composition of reaction mixture or removed gases. Preferably, government is effected over many-dimensional predicting regulator of preliminarily programmed electronic device. Concentration of water in reaction medium is maintained at level lower, higher or equal to 14 wt % and that of methyl acetate below 5 % based on the weight of reaction medium. Both concentrations are measured by means of analyzer functioning in neat infrared region.

EFFECT: optimized process conditions and increased yield of products.

19 cl, 2 dwg, 4 ex