, Volume 92, Issue 2, pp 369-376
Date: 29 Nov 2007

Hydrogenation of citral on Ir/SiO2 catalysts. Effect of the addition of Nb2O5 on surface and catalytic properties

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Abstract

Hydrogenation of citral over Ir supported on SiO2, Nb2O5 and Ir/Nb2O5-SiO2 catalysts reduced at 473 K (LT) and 773 K (HT) was studied. High selectivity to unsaturated alcohol was found, the main reaction products being geraniol and nerol. The LT catalysts show higher conversion levels, the one with a higher Nb content displays highest conversion.