CARBONYLATION PROCESS

A carbonylation process for making acetic acid using a metallic co-catalyst composition comprising a rhodium stabilizer and rate promoter at molar ratios of metal/rhodium of about 0 5 to 40. The process includes reacting methanol with a carbon monoxide in th presence of a rhodium based catalytic met...

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Main Authors TORRENCE, G., PAULL, GAUTRON, SAMUEL, LASSAUQUE, NICOLAS, D, KALCK, PHILIPPE, J, SERP, PHILIPPE, G, LE BERRE, CAROLE, M
Format Patent
LanguageEnglish
Published 30.01.2013
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:A carbonylation process for making acetic acid using a metallic co-catalyst composition comprising a rhodium stabilizer and rate promoter at molar ratios of metal/rhodium of about 0 5 to 40. The process includes reacting methanol with a carbon monoxide in th presence of a rhodium based catalytic metale complex together with about 1 to 20 weight percent methyl iodide, in the presence of less than 8% water and 05 to about 30 weight percent methyl acetate. The crude acetic acid is flashed and further purified This process is stable with an STY greater than 10 mol/L/hr
Bibliography:Application Number: SG20120091757