Catalysis Letters p. 2784 - 2794 (2021)
Update date:2022-08-10
Topics:
Shi, Dongxu
Zhu, He
Han, Yaping
Zhang, Yuecheng
Zhao, Jiquan
Abstract: A mixed oxide supported bimetallic catalyst Ni25.38Co18.21/MgO–0.75Al2O3 was readily prepared and found to be efficient in the hydrogenation of valeronitrile (VN) to amylamine (AA) under atmospheric pressure. Under the optimal conditions: H2 to VN molar ratio of 4:1, NH3 to VN molar ratio of 3:1, reaction temperature of 130?°C and residence time of 5?s, the conversion of VN reached 100% with a AA yield of 70.8%, and a diamylamine (DAA) yield of 25.9%. This catalyst was also active in the hydrogenation of other low carbon aliphatic nitriles to their corresponding primary amines. The characterization results revealed that the catalyst had the properties of large surface area, uniform and fine dispersion of metal particles in the form of Ni/Co alloy with synergy effect between the two metals, which endowed the catalyst with good catalytic performances in the hydrogenation reaction of aliphatic nitriles. Graphic Abstract: [Figure not available: see fulltext.]
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