Synthesis of Methyl Methacrylate by Aldol Condensation of Methyl Propionate with Formaldehyde Over Acid-Base Bifunctional Catalysts

被引：64

作者：

Li, Bin ^{[1
]}

Yan, Ruiyi ^{[2
]}

Wang, Lei ^{[2
]}

Diao, Yanyan ^{[2
]}

Li, Zengxi ^{[1
]}

Zhang, Suojiang ^{[2
]}

机构：

[1] Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Beijing 100190, Peoples R China

来源：

CATALYSIS LETTERS | 2013年 / 143卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Aldol condensation; Catalyst; Methyl methacrylate; Methyl propionate; Formaldehyde; PHASE; PHOSPHATE;

D O I：

10.1007/s10562-013-1040-4

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：

Supported cesium catalysts with various carriers (SiO2, Al2O3, TiO2, MgO) were prepared and characterized by X-ray diffraction, BET nitrogen adsorption-desorption, NH3 and CO2-TPD methods and thermogravimetric analysis. Experimental results showed that the Zr-Mg-Cs/SiO2 catalyst exhibited moderate activity for aldol condensation of methyl propionate with formaldehyde (FA) to produce methyl methacrylate. Though the activity of Zr-Mg-Cs/SiO2 catalyst decreased with the time-on-stream, the deactivated catalyst was completely regenerated by calcination. The catalyst was regenerated 16 times and total operation time was over 500 h, its activity was identical with that of the fresh catalyst.

引用

页码：829 / 838

页数：10

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