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Title: Mesoporous sulfonic acids as selective heterogeneous catalysts for the synthesis of monoglycerides
Authors: Bossaert, WD ×
De Vos, Dirk
Van Rhijn, WM
Bullen, J
Grobet, Pierre
Jacobs, Pierre #
Issue Date: 1999
Publisher: ACADEMIC PRESS INC
Series Title: Journal of catalysis vol:182 issue:1 pages:156-164
Conference: date:Katholieke Univ Leuven, Ctr Surface Sci & Catalysis, B-3001 Heverlee, Belgium
Abstract: Glycerol was esterified with an equimolar amount of lauric acid to monolaurin using zeolites, sulfonic resins, and sulfonic mesoporous materials as catalysts. The latter were obtained by immobilization of 3-mercaptopropyl groups and oxidation with H2O2. In particular, fatty acid conversions, monoglyceride yields, and selectivities obtained with mesoporous (ordered, amorphous) sulfonic catalysts were compared with those of other heterogeneous or homogeneous catalysts. When using silica gel coated with propylsulfonic acids, high reaction rates are coupled to high monoglyceride yields, e.g., 53% mono yield for a 1:1 glycerol:lauric acid ratio. Minimizing the autocatalytic contribution of the fatty acid reactant is a critical issue. The influence of a number of reaction parameters is investigated. The mesoporous sulfonic catalysts are also employed in the esterification of propanediols and meso-erythritol, and for reactions with other fatty acids. (C) 1999 Academic Press.
ISSN: 0021-9517
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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