Effects of rare earths on activity and selectivity of hydrogenation of chloronitrobenzene over PtM/TiO2 (M=La, Ce, Pr, Nd and Sm) catalysts | Health & Environmental Research Online (HERO)

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HERO ID

8216041

Reference Type

Journal Article

Title

Effects of rare earths on activity and selectivity of hydrogenation of chloronitrobenzene over PtM/TiO2 (M=La, Ce, Pr, Nd and Sm) catalysts

Author(s)

Lai, GH; Han, XX; Zhou, RX; Zhang, JX; Zheng, XM

Year

2004

Is Peer Reviewed?

Journal

Indian Journal of Chemistry. Section A
ISSN: 0376-4710
EISSN: 0975-0975

Volume

Issue

Page Numbers

2545-2548

Language

English

Abstract

The effect of rare earths on the activity and selectivity of the hydrogenation of chloronitrobenzene to chloroaniline over PtM/TiO2 (M=La, Ce, Pr, Nd and Sm) catalysts has been studied in ethanol at 303 K and atmospheric pressure. PtM/TiO2 catalysts show higher activity than Pt/TiO2 catalyst for the hydrogenation. Some PtM/TiO2 catalysts increase the selectivity for chloroaniline. The conversion of chloronitrobenzene is >99%. The highest yield of p-, m- and o- chloroaniline is 95.7mol% for PtLa/TiO2, 96.8mol% for PtCe/TiO2 and 97.0mol% for PtPr/TiO2, respectively. The reaction rate is in the following order: m-CNB > p-CNB > o-CNB.