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Citation: ZHANG Quan-Xin, LIU Xi-Yao, CHEN Hao, LEI Ming. Hydrogenation of Nitrobenzene over (Cu)CeO₂ Catalyst[J]. Chinese Journal of Applied Chemistry, ;2002, 19(11): 1049-1053. shu

Hydrogenation of Nitrobenzene over (Cu)CeO₂ Catalyst

1.
Research Institute of Beijing Yanshan Petrochemical Co., Beijing 102500

Corresponding author: LIU Xi-Yao,
Received Date: 26 December 2001
Available Online: 12 March 2002

The influences of preparation technology and composition of Cu-Ce mixed oxide catalysts as well as the reaction condition of hydrogenation of nitrobenzene over (Cu)CeO₂ have been investigated. Among the four preparation regimes studied the best appeared the coprecipitation method which comprises coprecipitation of Ce(NO₃)₃ and Cu(NO₃)₂ solution with aq. NaOH, followed by calcination of the precipitate at 650℃ for 4 h. The catalyst exhibited a satisfactory working life, with both conversion of nitrobenzene and selectivity of aniline being achieved almost quantitatively in hydrogenation reaction at the structure threshold of the catalyst near 9% Cu content. The optimum reaction conditions was as follows: 190℃, P_H₂ 0.5 MPa, n(H₂)/n(C₆H₅NO₂)>4, LHSV<6 h^-1.
- Cu/Ce mixed oxide,
- catalyst performance,
- nitrobenzene,
- hydrogenation
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沈阳化工大学材料科学与工程学院沈阳 110142

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通讯作者: 陈斌, bchen63@163.com

Hydrogenation of Nitrobenzene over (Cu)CeO₂ Catalyst