PROCESS FOR THE PRODUCTION OF ACETIC ACID

A process for the production of acetic acid comprising: introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide,...

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Main Authors FROOM, SIMON, FREDERIK, THOMAS, BREEDEN, CLIVE, RICHARD, SMITH, STEPHEN, JAMES, HENNIGAN, SEAN, ANTHONY
Format Patent
LanguageEnglish
French
German
Published 04.01.2012
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:A process for the production of acetic acid comprising: introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide, methyl acetate, acetic acid and water; withdrawing at least a portion of the liquid reaction composition together with dissolved and/or entrained carbon monoxide from the first reaction zone; passing at least a portion of the withdrawn liquid reaction composition to a second reaction zone; passing at least a portion of the liquid reaction composition from the second reaction zone into a flash separation zone; wherein the temperature of the liquid reaction composition withdrawn from the first reaction zone is in the range of 170 to 195°C; and the temperature of the liquid reaction composition passed from the second reaction zone to the flash separation zone is at least 8°C greater than the temperature of the liquid reaction composition withdrawn from the first reaction zone.
Bibliography:Application Number: EP20090711918