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Lanthanum and Cesium-Loaded SBA-15 Catalysts for MMA Synthesis by Aldol Condensation of Methyl Propionate and Formaldehyde
Wang, Yanan1; Yan, Ruiyi2; Lv, Zhaopo2; Wang, Hui2; Wang, Lei2; Li, Zengxi1; Zhang, Suojiang2
2016-09-01
Source PublicationCATALYSIS LETTERS
ISSN1011-372X
Volume146Issue:9Pages:1808-1818
Abstract

Aldol condensation of methyl propionate (MP) and formaldehyde (FA) is a green and sustainable route to synthesize methyl methacrylate (MMA). In this work, lanthanum and cesium-loaded SBA-15 acid-base bifunctional catalysts for aldol condensation have been prepared by wetness impregnation method to maximize the yield of MMA. With the investigation of the relationship between the properties of catalysts and the catalytic performance, the appropriate acid-base sites for this reaction were provided. The results showed that La existed as LaONO3 on the catalysts and could constitute additional Lewis acid sites on the catalysts. The Cs-0.1La/SBA-15 (with La content of 0.1 %) exhibited higher catalytic activity than the other La-containing catalysts because of the higher density of medium base sites and medium acid sites. The catalysts calcined at 450 A degrees C performed well on this reaction due to the formation of medium base sites on the catalysts as well as the big surface area around 400 m(2)/g and uniform pore size at 6 nm. When the MP/FA molar ratio was 1/1, the conversion of MP was 29.2 % and the selectivity of MMA could reach 90.4 %.

KeywordLanthanum-loaded Aldol Condensation Acid And Base Properties
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10562-016-1810-x
Indexed BySCI
Language英语
WOS KeywordSUPPORTED NICKEL-CATALYSTS ; ISOBUTANE OXIDATION ; BASIC PROPERTIES ; METHACRYLATE ; OXIDE ; HYDROGENATION ; ZIRCONIUM ; STRONTIUM ; METHANE ; NI
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China(21406244 ; Key Program of National Science Foundation of China(91434203) ; Key Laboratory of Applied Surface and Colloid Chemistry of Shaanxi Normal University ; 21276267)
WOS IDWOS:000382011600018
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21309
Collection多相复杂系统国家重点实验室
Affiliation1.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc,Key Lab Gr, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yanan,Yan, Ruiyi,Lv, Zhaopo,et al. Lanthanum and Cesium-Loaded SBA-15 Catalysts for MMA Synthesis by Aldol Condensation of Methyl Propionate and Formaldehyde[J]. CATALYSIS LETTERS,2016,146(9):1808-1818.
APA Wang, Yanan.,Yan, Ruiyi.,Lv, Zhaopo.,Wang, Hui.,Wang, Lei.,...&Zhang, Suojiang.(2016).Lanthanum and Cesium-Loaded SBA-15 Catalysts for MMA Synthesis by Aldol Condensation of Methyl Propionate and Formaldehyde.CATALYSIS LETTERS,146(9),1808-1818.
MLA Wang, Yanan,et al."Lanthanum and Cesium-Loaded SBA-15 Catalysts for MMA Synthesis by Aldol Condensation of Methyl Propionate and Formaldehyde".CATALYSIS LETTERS 146.9(2016):1808-1818.
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