Esterification of free fatty acids with methanol using heteropolyacids immobilized on silica

The esterification of palmitic acid with methanol was studied using tungstophosphoric acid (PW), molibdophosphoric acid (PMo) and tungstosilicic acid (SiW) immobilized by sol–gel technique on silica, at 60 º C. It was observed that the catalytic activity decreases in the series: PW-silica > SiW-s...

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Bibliographic Details
Main Author: Caetano, C (author)
Other Authors: Fonseca, I (author), Ramos, A (author), Vital, J (author), Castanheiro, Jose (author)
Format: article
Language:por
Published: 2012
Subjects:
Biodiesel
Heteropolyacids
Silica
Esterification
Free fatty acids
Online Access:http://hdl.handle.net/10174/6267
Country:Portugal
Oai:oai:dspace.uevora.pt:10174/6267

Internet

http://hdl.handle.net/10174/6267

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