Kinetics of ο-Chloronitrobenzene Hydrogenation on Palladium/Carbon Catalyst

Abstract:

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A 2 wt % Pd/C catalyst has been prepared by chemical impregnation and used to catalyze the hydrogenation of o-chloronitrobenzene (o-CNB) to o-chloroaniline (o-CAN) in solvent-free conditions. The effects of reaction temperature, H2 pressure, and stirring intensity on the hydrogenation kinetics have been investigated. The hydrogenation reaction showed very high selectivity with dehalogenation side products as low as 0.3% of total yield. The favorable reaction conditions were found to be temperature T = 383 K, stirring speed = 900 rpm, and feeding ratio CNB/catalyst = 200/1 (m/m). The recycled Pd/C still retained more than 98% of its original selectivity after 12 repeat used, indicating the catalyst had strong potentials for commercial application at industrial scale.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

161-167

DOI:

10.4028/www.scientific.net/AMR.239-242.161

Citation:

X. Z. Wang et al., "Kinetics of ο-Chloronitrobenzene Hydrogenation on Palladium/Carbon Catalyst", Advanced Materials Research, Vols. 239-242, pp. 161-167, 2011

Online since:

May 2011

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Price:

$35.00

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