摘要
用离子交换法将具有Keggin结构的K8[SiW11MO40](M=Co2+,Cu2+,Ni2+)嵌入到Zn2Al黏土中,得到层状化合物Zn2Al-SiW11M(M=Co2+,Cu2+,Ni2+),并用XRD,IR,UV对其进行了表征。结果表明:杂多阴离子进入黏土后,仍保留了其Keggin结构。利用层状化合物催化合成乙酸正丁酯,考察其催化活性。结果表明:层状化合物在酯化反应中显示出优良的催化性能。
The transition metal monosubstituted tungstosilicic heteropoly-anion layered compounds of Zn2Al-SiWll M （M = Co2＋, Cu2＋, Ni2＋） are synthesized by inserting Ks [ SiW11 MO40 ] （M = Co2＋, Cu2＋, Ni2＋） with Keggin structure to Zn2Al clay using ion-ex- change method. The layered compounds are characterized by XRD, IR and UV. The results indicate that with the heteropoly-anions displacing the NO3- ions in the clay, the layered compounds still have Keggin structure, n-Butyl acetate is synthesized using the lay- ered compounds as catalyst, and the catalytic activity of layered compounds is investigated. The results indicate that the layered com- pounds have good catalytic performance over the esterification.
出处
《化学工业与工程技术》
CAS
2013年第6期1-5,共5页
Journal of Chemical Industry & Engineering
关键词
钨硅杂多阴离子
层状化合物
酯化反应
催化剂
乙酸正丁酯
Tungstosilicic heteropoly-anion
Layered conpound
Esterification reaction
Catalyst
n-Butyl acetate
作者简介
单秋杰（1964-），女，河北抚宁人，教授，现从事取代型杂多酸盐的研究与教学工作。E-mail：shanqqjj@163．com。
