环己胺
催化作用
环己醇
环己酮
化学
水滑石
胺化
还原胺化
化学工程
无机化学
有机化学
工程类
作者
Yanan Wei,Kuiyi You,Wangtao Li,Wenchao Xu,Fangfang Zhao,Dejian Yan,Xiaowen Zhang,Zhenpan Chen,He’an Luo
标识
DOI:10.1016/j.jcat.2024.115315
摘要
The partial oxidation of cyclohexylamine to cyclohexanone oxime provides the new approach for preparation of caprolactam, which is vital important monomer of nylon-6 fibers and resins. In this work, a simple and efficient reductive amination of KA-oil to cyclohexylamine was developed over hydrotalcite-derived 9 %Ni-3 %Fe/MgAl-LDO catalyst. The results showed that the 9 %Ni-3 %Fe/MgAl-LDO catalyst exhibited the excellent catalytic performance, 97 % of cyclohexanol conversion and 99 % of cyclohexanone conversion were achieved with 98 % of selectivity to cyclohexylamine over 100 h at 170 °C. The highly-dispersed Ni3Fe alloy nanoparticles anchored on MgAl-LDO are responsible for the excellent catalytic performance and stability of catalyst. Moreover, the Ni sites of Ni3Fe alloy (1 1 1) facet as dominant catalytic active sites were identified by DFT calculation. The present work provides a new approach for green preparation of cyclohexylamine from reductive amination of KA-oil over hydrotalcite-derived 9 %Ni-3 %Fe/MgAl-LDO catalyst, and has important industrial application prospects.
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