Racemization of chiral amino alcohols III:: Effect of Mg or Ca addition on the activity and stability of the Co/γ-Al2O3 catalyst

被引：4
|
作者：
Bai, Guoyi [1 ]
Zhang, Chenfang
Zhang, Yuecheng
Yu, Haijun
He, Fei
Ning, Huisen
Chen, Ligong
机构：
[1] Hebei Univ, Coll Chem & Environm Sci, Hebei 071002, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2007年 / 90卷 / 02期
基金：
中国国家自然科学基金;
关键词：
racemization; R-(-)-2-amino-1-butanol; Co/gamma-Al2O3; catalyst; addition;
D O I：
10.1007/s11144-007-5037-0
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 racemization of R-(-)-2-amino-1-butanol in a reaction using Co/gamma-Al2O3 catalysts and catalysts modified by Mg or Ca was investigated in this paper. Complete racemization was achieved with a yield of over 83% at using the Mg modified Co/gamma-Al2O3 catalyst under optimized reaction conditions of 170 degrees C and 2.5 MPa of H-2. The catalysts were thoroughly characterized by XRD, XPS, TPR, SEM and TEM. The addition of Mg and Ca may be advantageous for dispersing and stabilizing the active species of the Co/gamma-Al2O3 catalyst, protecting from sintering, significantly improving its catalytic activity and stability.
引用
收藏
页码：373 / 380
页数：8
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