Progress in the research of chloronitrobenzene selective hydrogenation catalysts

被引：0
|
作者：
Wang M. [1 ,2 ]
Zhou S. [1 ,2 ]
Ruan J. [1 ,2 ]
Li R. [1 ,3 ]
Chen X. [1 ,2 ]
机构：
[1] College of Chemical and Biological Engineering, Zhejiang University, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Hangzhou
[2] Institute of Zhejiang University-Quzhou, Quzhou
[3] Engineering Research Center of Recycling & Comprehensive Utilization of Pharmaceutical and Chemical Waste of Zhejiang Province, Taizhou University, Taizhou
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 08期
关键词：
Catalyst modification; Catalytic hydrogenation; Chloroaniline; Chloronitrobenzene;
D O I：
10.16085/j.issn.1000-6613.2020-1880
中图分类号：
学科分类号：
摘要：
Chloraniline (CAN) is an important and widely used intermediate for fine chemical production. CAN is mainly synthesized by catalytic hydrogenation of chloronitrobenzene (CNB). However, extensive dechlorination can occur during this process. Therefore, improving the performance of the catalysts to increase the reaction selectivity has received widespread attention. This paper summarizes the research progress of such catalysts in recent years for heterogeneous catalytic systems and homogeneous catalytic systems. Modification methods commonly used in heterogeneous catalytic systems include modulating metal dispersion, adjusting the properties of the support, and adding metal additives. Among them, the single-atom catalysts obtained by modulating metal dispersion exhibit excellent catalytic performance due to their high atom utilization, but the stability still needs to be improved. Homogeneous catalysts include metal complex catalysts, metal colloidal catalysts. The modification methods mainly include adding metal ions/complexes. Homogeneous catalysts have high efficiency, but the general synthesis process is cumbersome and they are difficult to recycle, which still needs to be optimized. In addition, this paper also summarizes the influence of the reaction medium on the hydrogenation system. At last, this paper concludes the characteristics of the catalyst modification methods, and provides theoretical guidance for the future design and application of CNB selective hydrogenation catalysts. In addition, the effect of the reaction medium on the hydrogenation system is also discussed. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：4223 / 4230
页数：7
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