Process for the recovery of a carbonylation product
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United States of America Patent
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May 12, 1998
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app pub date -
May 31, 1995
filing date -
Mar 26, 1993
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Abstract
A process for the recovery of a carbonylation product from a liquid reaction composition of an iridium-catalysed carbonylation reaction of a carbonylatable reactant includes subjecting the composition to a vaporization with or without the addition of heat to produce a vapor-fraction and a liquid fraction, the vapor fraction includes carbonylation product and the liquid fraction has a water concentration of at least 0.5% by weight to stabilise the iridium catalyst.
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