Question

Conversion of isopropyl alcohol to acetone catalysed by Cr2O3 at 473 K​

Answer 1

Answer:

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.