Mesoporous silica gel as an effective and eco-friendly catalyst for highly selective preparation of cyclohexanone oxime by vapor phase oxidation of cyclohexylamine with air

被引:22
作者
Liu, Shuilin [1 ]
You, Kuiyi [1 ,2 ]
Jian, Jian [1 ]
Zhao, Fangfang [1 ]
Zhong, Wenzhou [3 ]
Yin, Dulin [3 ]
Liu, Pingle [1 ,2 ]
Ai, Qiuhong [1 ,2 ]
Luo, He'an [1 ,2 ]
机构
[1] Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Peoples R China
[2] Xiangtan Univ, Natl & Local United Engn Res Ctr Chem Proc Simula, Xiangtan 411105, Peoples R China
[3] Hunan Normal Univ, Sch Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
Mesoporous silica gel; Cyclohexylamine; Cyclohexanone oxime; Selective oxidation; Vapor phase; PRIMARY AMINES; FT-IR; HYDROGEN-PEROXIDE; HYDROXYL-GROUPS; OXYGEN; AMMOXIMATION; PERFORMANCE; EVOLUTION; NITROGEN; ZEOLITE;
D O I
10.1016/j.jcat.2016.03.008
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A simple and environmentally benign approach to highly selective preparation of cyclohexanone oxime by vapor phase catalytic oxidation of cyclohexylamine with air over mesoporous silica gel under atmospheric pressure has been successfully developed in this work. The results demonstrate that the nonmetallic mesoporous silica gel is an effective and eco-friendly catalyst for the vapor phase selective oxidation of cyclohexylamine to cyclohexanone oxime and the surface silicon hydroxyl groups as active sites are responsible for the excellent catalytic performance of silica gel. The present silica gel catalyst has advantages of low cost, long-time stable reactivity, easy regeneration, and reusability. This method employing inexpensive mesoporous silica gel as catalyst and air as green terminal oxidant under facile conditions is a promising process and has the potential to enable sustainable production of cyclohexanone oxime from the selective oxidation of cyclohexylamine with air in industrial applications. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码:239 / 249
页数:11
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