Selectivity of a heterogeneous rhodium catalyst for the carbonylation of monohydric alcohols
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 73, 2036-2039
- https://doi.org/10.1039/f19777302036
Abstract
The carbonylation activity of a heterogeneous rhodium-zeolite catalyst has been examined for the reactions of methanol, ethanol and propan-2-ol. A marked contrast in the behaviour of these three alcohols is seen. Selectivity for the carbonylation of methanol is high (>90 %) at all temperatures, whereas the sole reaction product with propan-2-ol is propene. Ethanol shows intermediate behaviour, exhibiting high selectivity (approaching 100%) for carbonylation at low temperatures, but very poor selectivity at higher temperatures. The results are consistent with the relative ease with which dehydration of the reactants occurs on polar catalysts.Keywords
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