微波法制备SO_4^(2-)/Zr-MCM-41分子筛及其对合成乙酸异戊酯催化性能的影响  

Preparation of SO_4^(2-)/Zr-MCM-41 and Its Catalytatice Performance in Synthesis of Isoamyl Acetate

作　　者：刘书静[1] 杨秀敏[1] 降青梅[1] 

机构地区：[1]河北农业大学理学院,河北保定071001

出　　处：《湖北农业科学》2012年第21期4865-4867,共3页Hubei Agricultural Sciences

基　　金：河北省保定市科学研究与发展计划项目

摘　　要：采用微波方法制备SO42-/Zr-MCM-41分子筛,设置单因素试验考察硫酸锆(Zr(SO4)2)与硅酸钠(Na2SiO3)的物质的量之比、晶化温度、晶化时间和煅烧温度对分子筛催化性能的影响。结果表明,优化的SO42-/Zr-MCM-41分子筛制备条件为nZr∶nSi=0.05∶1,100℃微波晶化2.5 h,550℃煅烧。该催化剂合成简单易操作,可回收利用,具有良好的催化应用前景。Molecular sieve SO42-/Zr-MCM-41 was prepared by microwave method.Single factor tests were conducted to study the effects of nZr∶nSi,crystallization temperature,crystallization time and calcination temperature on the catalytatice efficiency of SO42-/Zr-MCM-41.The results showed that the optimum prepare conditions were nZr∶nSi=0.05∶1,crystallization at 100 ℃ for 2.5 h,calcination temperature 550 ℃.The catalyst could be easily synthesized and was recyclable,thus had great catalytic application prospect.

关 键 词：微波法 SO42- Zr-MCM-41分子筛 酯化反应 

分 类 号：O623.624[理学—有机化学] TQ426.61[理学—化学]