English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/12041
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Combined Alkyl and Sulfonic Acid Functionalization of MCM-41-Type Silica: Part 2. Esterification of Glycerol with Fatty Acids

AuthorsDíaz Carretero, Isabel ; Márquez Álvarez, Carlos ; Mohino, Federico; Pérez Pariente, Joaquín ; Sastre, Enrique
KeywordsMCM-41
Mesoporous acid catalysts
Sulfonic acid
Fatty acids
Selective esterification
Monoglyceride
Issue Date25-Jul-2000
PublisherElsevier
CitationJournal of Catalysis 193 (2): 295-302 (2000)
AbstractThe esterification of glycerol with lauric and oleic acids (1 : 1 molar ratio) has been carried out by using hybrid MCM-41 materials containing simultaneously alkyl (methyl or propyl) and sulfonic acid groups as catalysts. It has been found that for each fatty acid the catalyst activity is affected by the concentration of methyl groups, and maximum activity per sulfonic acid group is achieved by tuning the methyl/sulfonic acid ratio. A monolaurin yield of 63% is obtained with the most active catalyst, whereas for oleic acid the maximum monoolein yield was 45%. Reduction of the average pore size (determined by N2 adsorption) from 14 to below 10 Å has a detrimental influence on the catalyst activity for both acids.
Description8 pages, 10 figures, 4 tables.
Publisher version (URL)http://dx.doi.org/10.1006/jcat.2000.2899
URI10261/12041
DOI10.1006/jcat.2000.2899
ISSN0021-9517
Appears in Collections:(ICP) Artículos
Files in This Item:
File Description SizeFormat 
JCat_193_295_2000.pdf112,87 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.