1- n-Butyl-3-methylimidazolium tetrachloro-indate ( BMI ⋅ InCl 4 ) as a media for the synthesis of biodiesel from vegetable oils

The complex [Sn(3-hydroxy-2-methyl-4-pyrone) 2(H 2O) 2] immobilized in 1- n-butyl-3-methylimidazolium tetrachloro-indate ( BMI ⋅ InCl 4 ) ionic liquid forms an effective biphasic catalytic system for the production of biodiesel from the alcoholysis of soybean oil. ESI-MS experiments during the trans...

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Bibliographic Details
Published in:Journal of catalysis 2007-07, Vol.249 (2), p.154-161
Main Authors: DaSilveira Neto, Brenno Amaro, Alves, Melquizedeque B., Lapis, Alexandre A.M., Nachtigall, Fabiane M., Eberlin, Marcos N., Dupont, Jaïrton, Suarez, Paulo A.Z.
Format: Article
Language:English
Subjects:
Alcohol
Biodiesel
Biodiesel fuels
Biofuels
Catalysis
Catalysts
Chemical synthesis
Chemistry
Electrospray ionization mass spectrometry
Exact sciences and technology
General and physical chemistry
Ionic liquids
Oils & fats
Soybeans
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Tin catalyst
Transesterification
Vegetable oils
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Summary:The complex [Sn(3-hydroxy-2-methyl-4-pyrone) 2(H 2O) 2] immobilized in 1- n-butyl-3-methylimidazolium tetrachloro-indate ( BMI ⋅ InCl 4 ) ionic liquid forms an effective biphasic catalytic system for the production of biodiesel from the alcoholysis of soybean oil. ESI-MS experiments during the transesterification reaction indicate that the reaction may proceed through the formation of a cationic species formed through the substitution of one pyrone ligand by one alcohol molecule, followed by coordination of the carboxylate compound to tin. The adduct thus formed undergoes transesterification with liberation of the catalytic active species.
ISSN:0021-9517
1090-2694
DOI:10.1016/j.jcat.2007.04.015