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Solvent-free partial oxidation of cyclohexane to KA oil over hydrotalcite-derived Cu-MgAlO mixed metal oxides

Authors :
Peng Liu
Zhengqiu Yuan
Weijie Sun
Hu Zhou
Dexing Yang
Qiuhong Ai
Kuiyi You
He’an Luo
Jian Jian
Source :
Chinese Journal of Chemical Engineering. 42:269-276
Publication Year :
2022
Publisher :
Elsevier BV, 2022.

Abstract

A highly efficient and stable hydrotalcite-derived Cu-MgAlO catalyst was developed for the partial oxidation of cyclohexane with molecular oxygen. The physical-chemical properties of Cu-MgAlO catalysts were studied, and the results indicated that the copper component had been successfully introduced into the hydrotalcite unit layer structure. The catalytic reaction results showed that copper as the active species could activate C-H bond and effectively promote the decomposition of cyclohexyl hydroperoxide (CHHP) to KA oil. 8.3% of cyclohexane conversion and 82.9% of selectivity for KA oil were obtained over 9%Cu-MgAlO catalyst at 150 °C with 0.6 MPa of oxygen pressure for 2 h. Especially, its catalytic performance was still stable after five runs.

Details

ISSN :
10049541
Volume :
42
Database :
OpenAIRE
Journal :
Chinese Journal of Chemical Engineering
Accession number :
edsair.doi...........4f7c0db2ed2e08127c368054d401b26c
Full Text :
https://doi.org/10.1016/j.cjche.2021.04.020