LI Guixian, REN Bin, JI Dong, ZHANG Xuemei, XU Yanduo, DONG Peng

(College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, China)

Abstract: A novel passivated Ni/HY catalyst was prepared by the technology of macerate-precipitation, the prepared catalyst was fully characterized by BET, XRD, TEM, TPR and applied to the aromatic amines preparation. The Ni/HY catalyst exhibits high catalytic activity for the synthesis of aromatic amines in liquid phase. In the catalytic activity test, under mild condition, the conversion of nitrocompounds and selectivity of aromatic amines were found to be both over 99.0% in 0.5 h. The Ni/HY catalyst can be stored safely in air below 150℃ and needs no activation before use, besides, it is also found the catalyst highly dispersion and good magnetic separation. 

Key words: Ni/HY catalyst; catalytic hydrogenation; nitro-compound; aromatic amine

E-mail: renbints@163.com 

Journal of Molecular Catalysis, Vol. 26, Issue 2, 2012, 116-120