VERFAHREN ZUR HERSTELLUNG VON ESSIGSÄURE

摘要

The invention comprises catalytical steps of converting hydrogen and carbon monoxide in the synthesis gas to a mixed process stream containing methanol and dimethyl ether (DME) and carbonylating methanol and DME formed in the process stream into acetic acid. Carbon monoxide for use in the carbonylation step is recovered directly from the feed gas to the first reaction step of the above process.