Conversion of isopropyl alcohol to acetone catalysed by Cr2O3 at 473 K: role of molecular oxygen
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 90 (16) , 2413-2415
- https://doi.org/10.1039/ft9949002413
Abstract
The conversion of isopropyl alcohol to acetone has been studied over Cr2O3 powder at 473 K in a flowing microcatalytic reactor. Appreciable steady-state catalytic activity was achieved only when oxygen was present in the reactant gas flow. The effect of mild pretreatment of Cr2O3 in O2–N2 at 473 K on the initial activity, and the observed dependence of the process on O2 pressure has been related to the oxidation–reduction cycle of the surface chromium species. Cr(3+n)+ on the surface of Cr2O3 have been considered to be the active species, where n= 1–3.Keywords
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