Abstract
The effect of rare earths (Sm, Pr, Ce, Nd, and La) on the hydrogenation properties of chloronitrobenzene (CNB) over Pt/ZrO2 catalyst was studied in ethanol at 303 K and normal pressure. The results show that the hydrogenation of CNB can be carried out over Pt/ZrO2 catalyst. The order of the hydrogenation rates of CNB is p>m>o, and the yield of chloroaniline (CAN) is p>o>m. The specific rate constant turnover frequency (TOF) expressed per surface Pt atom increases when the platinum catalyst is modified by rare earth. The conversion of CNB is >99% and CAN is the main product in the hydrogenation of CNB over PtM/ZrO2 catalysts. The PtPr/ZrO2 catalyst shows the best selectivity of CNB to CAN: 89.4 mol% for o-CAN, 94.6 mol% for m-CAN and 95.1 mol% for p-CAN.
Similar content being viewed by others
References
R. Baltzly and A. P. Phillips, J. Am. Chem. Soc. 68 (1946) 261.
J. R. Kosak, U.S. Patent 4,020,107 (1977) to E.I. du Pont de Nemours and Co
L. Cerveny, I. Paseka, V. Struckly and V. Ruzicka, Collect. Czech. Chem. Commun. 47 (1982) 853.
S. Galvagno, A. Donato, G. Neri and R. Pietropaolo, J. Mol. Catal. 42 (1987) 379.
H. Greenfield and F. S. Dovell, J. Org. Chem. 32 (1967) 3670.
J. R. Kosak, N.Y. Ann. Acad. Sci. 172 (1970) 175.
G. C. Bond, D. E. Webster, N.Y. Ann. Acad. Sci. 158 (1969) 540.
L. Spiegler, U.S. Patent 3,073,865 (January 1963) to E.I. du Pont de Nemours and C
S. G. Hindin, U.S. Patent (May 1972) to Engelhard Minerals & Chemicals Co.
X. Guangxian and X. Jime (eds.), New-Frontiers in Rare Earth Science and Applications (Science Press, Beijing 1985)
X. X. Han, R. X. Zhou, X. M. Zheng and H. Jiang, J. Mol. Catal. A193 (2003) 103.
B. Coq, P. S. Khumbar, C. Moreau, P. Moreau and M. Warawdekar, J. Mol. Catal. 85 (1993) 215.
B. Coq, P. S. Khumbar, C. Moreau, P. Moreau and F. Figueras, J. Phys. Chem. 98 (1994) 10180.
H. X. Li, W. Wang, H. Li and J. F. Deng, J. Catal. 194 (2000) 211.
J. R. Kosak, in Catalysis in Organic Chemistry, W. H. Jones (ed.), (Academic Press, New York, 1980) p. 107.
W. Pascoe, in P. N. Rylander, H. Greenfield and R. L. Augustine (eds.), Catalysis of Organic Reactions (M. Dekker, New York, 1988) p. 121.
S. Galvagno, A. Donato, G. Neri and R. Poetrpaolo, J. Mol. Catal. 42 (1987) 379.
B. Coq, A. Tijani and F. Figueras, J. Mol. Catal. 68 (1991) 331.
K. Christman and G. Ertl, Surf. Sci. 60 (1976) 365.
X. P. Yan, M. H. Liu, H. F. Liu and H. Y. Liew, J. Mol. Catal. A169 (2001) 225.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Han, X., Zhou, R., Lai, G. et al. Influence of Rare Earth (Ce, Sm, Nd, La, and Pr) on the Hydrogenation Properties of Chloronitrobenzene Over Pt/ZrO2 Catalyst. Catalysis Letters 89, 255–259 (2003). https://doi.org/10.1023/A:1025766815857
Issue Date:
DOI: https://doi.org/10.1023/A:1025766815857