A novel supported quaternary NiCuMgFe/Al2O3 catalyst for the synthesis of alkyl tertiary amines

被引：0

作者：

Zhou, Tao ^{[1
]}

Dai, Anqi ^{[1
]}

Pan, Mingxi ^{[1
]}

Kong, Jiangrong ^{[1
]}

Zhou, Yonghua ^{[1
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Efficient & Clean Utilizat Man, Changsha 410083, Hunan, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2019年 / 126卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Alkyl-tertiary-amine; Catalyst; NiCuMgFe; Co-precipitation; Cu-0; ONE-STEP AMINATION; FATTY ALCOHOLS; DODECYL ALCOHOL; MG; HYDROGEN; STATE;

D O I：

10.1007/s11144-018-1499-5

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：

The catalytic amination of aliphatic alcohols to manufacture alkyl tertiary amines is a promising process. In this paper, novel types of quaternary NiCuMgFe/Al2O3 and NiCuZnFe/Al2O3 catalysts were prepared via co-precipitation method and the performances were contrasted in details. With the optimum molar ratio n(Ni):n(Cu):n(Mg):n(Fe)=1.25:1:0.3:0.6, NiCuMgFe/Al2O3 catalyst delivered a N-propyldioctylamine (NPDA) yield of 94.3% and good recycling stability. In addition, NiCuMgFe/Al2O3 catalyst displayed the universality for several other types of alkyl tertiary amines. The characterizations of XRD, Raman, UV-vis-DR, XPS and H-2-TPR revealed that obvious synergistic effect between the promoters Mg and Fe occurred, and they significantly improved both the percentage of Cu-0 species and the dispersion of NiO active sites. As a result, the hydrogenation and dehydrogenation abilities of NiCuMgFe/Al2O3 catalyst were balanced towards a high conversion of alcohol and a high selectivity to tertiary amines.

引用

页码：283 / 294

页数：12

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