Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Transesterification Of Soybean Oil Catalyzed By Sulfated Zirconia.
Author: Garcia, Camila Martins
Teixeira, Sergio
Marciniuk, Letícia Ledo
Schuchardt, Ulf
Abstract: Two sulfated zirconias were synthesized and characterized by X-ray diffraction and infrared spectroscopy. They were used as catalysts in the alcoholysis of soybean oil and in the esterification of oleic acid. Using sulfated zirconia prepared by the solvent-free method (S-ZrO(2)) as catalyst, the alcoholysis conversions of soybean oil under optimized conditions (120 degrees C, 1h and 5wt% of catalyst) were 98.6% (methanolysis) and 92% (ethanolysis), respectively. The esterification of oleic acid with methanol was complete after 2h. Zirconia sulfated by standard methods (SZ) had low activity in the methanolysis of soybean oil (conversion of 8.5%) and conventional zirconia (NS) was inactive for methanolysis under the conditions optimized for S-ZrO(2).
Subject: Catalysis
Soybean Oil
Rights: fechado
Identifier DOI: 10.1016/j.biortech.2007.09.092
Date Issue: 2008
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
File SizeFormat 
pmed_18280150.pdf176.23 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.