Cyanoethylation of ethanol on Mg-Al hydrotalcites promoted by Y3+ and La3+

被引：60

作者：

Angelescu, E

Pavel, OD

Che, M

Birjega, R

Constentin, G

机构：

[1] Univ Bucharest, Fac Chem, Bucharest 030018 3, Romania

[2] Univ Paris 06, F-75252 Paris 05, France

[3] SC Zecasin SA, Bucharest 6, Romania

来源：

CATALYSIS COMMUNICATIONS | 2004年 / 5卷 / 10期

关键词：

promoted Mg-Al hydrotalcites; cyanoethylation of ethanol;

D O I：

10.1016/j.catcom.2004.07.016

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 basic solid catalysts obtained from Mg-Al hydrotalcite (HT) precursors have been investigated in the cyanoethylation of ethanol. Low activity was observed on conventional HT (carbonated); the activity reached high values after calcinations and rehydration at room temperature of the calcined samples. The basicity of the catalysts has been increased by the replacement - during preparation - of some small amount of Al by Y or La (Mg0.7Al0.21Me0.01+3; Mg0.8Al0.15Me0.05+3 = Y, La). The content of Y is 3.48% (w/w), respectively, and of La it is 5.23% (w/w). A correlation between the basicity and catalytic activity has been discussed.

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页码：647 / 651

页数：5

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