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Use of anhydrous sodium molybdate as an efficient heterogeneous catalyst for soybean oil methanolysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
43249 45959 2008 8 PDF Available
Title
Use of anhydrous sodium molybdate as an efficient heterogeneous catalyst for soybean oil methanolysis
Abstract

Sodium molybdate (Na2MoO4) has been synthesized and investigated as a heterogeneous catalyst for the methanolysis of different types of renewable lipid sources derived from the soybean oil. Transesterification reactions occurred under relatively mild conditions, requiring low temperatures, short times and normal pressure. The methyl esters synthesized were characterized by reverse-phase and size-exclusion chromatography and hydrogen-nuclear magnetic resonance spectroscopy. The catalyst was characterized by X-ray diffraction, thermogravimetric analysis, and Fourier transform infrared spectroscopy (FTIR). It is very efficient for the transesterification reaction of triglycerides with methanol, with yields higher than 95% of methyl esters. The molybdenum(VI)-complex has a high Lewis acidity and most certainly act on alcohol O–H bond leading to a transient species which has high nucleophilic character. The catalyst was easily recovered and after being washed showed capacity of recyclability for another catalytic reaction with similar activity.

Graphical abstractSodium molybdate was investigated as heterogeneous catalyst for the methanolysis of soybean oil under relatively mild conditions. Methyl esters synthesized were characterized by reverse-phase and size-exclusion chromatography and hydrogen-nuclear magnetic resonance spectroscopy. The catalyst was very active for transesterification reaching yields higher than 95% of methyl esters. The catalyst was easily recovered and showed capacity of recyclability with similar activity.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Transesterification; Methanolysis; Heterogeneous catalysis; Sodium molybdate; Biodiesel
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Use of anhydrous sodium molybdate as an efficient heterogeneous catalyst for soybean oil methanolysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 351, Issue 2, 30 December 2008, Pages 267–274
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us