Process for the recovery of a carbonylation product

Details Process for the recovery of a carbonylation product Process for the recovery of a carbonylation product

C - Chemistry, Metallurgy

07

C

C07C 53/00 (2006.01) C07C 51/12 (2006.01) C07C 51/44 (2006.01) C07C 51/573 (2006.01) C07C 67/36 (2006.01) C07C 67/54 (2006.01)

Patent

CA 2119609

The invention relates to the recovery of a carbonylation product from a liquid carbonylation reaction composition that contains carbonylation product and free or combined iridium carbonylation catalyst. The process comprises subjecting the liquid carbonylation reaction composition to a vaporisation with or without the addition of heat to produce a vapour fraction comprising carbonylation product and a liquid fraction comprising iridium carbonylation catalyst, and separating the liquid and vapour fractions. During the process there is maintained in the liquid fraction a concentration of water of at least 0.5% by weight.

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