The Intermetallic Catalysts for Oxidative Esterification of Methacrolein to Methyl Methacrylate

作     者：董海锋 李增喜 王正平 赵威 刁琰琰 张锁江 

作者机构：Institute of Process Engineering Chinese Academy of Sciences School of Chemical Engineering Harbin Engineering University Harbin Heilongjiang 150001 China School of Chemical Engineering Harbin Engineering University 

出 版 物：《过程工程学报》 (The Chinese Journal of Process Engineering)

年 卷 期：2006年第6卷第4期

页      面：661-665页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Supported by the National Natural Science Foundation of China(No.20436050)and the National High Technology Development Program of China(No.2004AA649240) 

主　　题：methyl methacrylate methacrolein Pd-Pb catalyst oxidative esterification 

摘      要：A series of supported intermetallic Pb-Pb catalysts were prepared with the impregnation method by changing the support(silica,molecular sieve or γ-alumina)and the pore *** chemical states of the two metals were characterized by XPS analysis,the process for producing methyl methacrylate based on the direct oxidative esterification of methacrolein with methanol in the presence of oxygen was performed in a slurry reactor with the above-mentioned *** influence of the calcination temperature and the kinds of support as well as the pore size on catalytic activity had been extensively *** the conditions of temperature at 80℃,catalyst 3.8%(ω)and the reaction time 2 h,the conversion rate of methacrolein reached 85%,the selectivity and the yield of methyl methacrylate were 90% and 76.5%,respectively.