Affiliation:
1. Huanggang Normal University
2. Wuhan Institute of Technology
3. University of Queensland
Abstract
The influence of the preparation conditions of the impregnation-vacuum filtration method was investigated systematically on the Ni dispersion and the activity of Ni-cordierite structured catalysts in hydrogenation of m-dinitrobenzene to m-phenylenediamine. H2-TPD measurement showed that the Ni dispersion has close relationship with the impregnation solution concentration of nickel nitrate, the impregnation time, the vacuum degree, the vacuum filtration time and the calcination temperature. The hydrogenation activity test and nitrogen physisorption investigation showed that the catalytic performance of Ni-cordierite is dependent upon the Ni dispersion and the chemisorption mode of m-dinitrobenzene on Ni particles.
Publisher
Trans Tech Publications, Ltd.
Reference27 articles.
1. L. Zhao, J.X. Chen, and J.Y. Zhang: J. Mol. Catal. A Vol. 246 (2006), p.140.
2. Y.X. Liu, J.X. Chen, and J.Y. Zhang: Chin. J. Chem. Eng. Vol. 15(2007), p.63.
3. A.J. Bird, D.T. Thompson, in: Catalysis in Organic Syntheses, New York, Academic Press (1980).
4. Z.K. Yu, S.J. Liao, Y. Xu, B. Yang, and D.R. Yu: J. Mol. Catal. A Vol. 120(1997), p.247.
5. K. Shimazu, Y. Tatrno, and M. Magara, J.P. Patent 09. 132. 536. (1997).