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Vol 26 No Supplementary Issue

Copyright (c) 2014 Fashe Li1, Ming Li3, Guirong Bao1, Hua Wang1, Yizhe Li1, Wei Du1, Xiufeng Li1

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Preparation of Gallic Acid Esters and Their Antioxidant Properties for Biodiesel

https://doi.org/10.14233/ajchem.2014.19051
Fashe Li1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Ming Li3
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Guirong Bao1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Hua Wang1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Yizhe Li1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Wei Du1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com
Xiufeng Li1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China 2Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, P.R. China 3Department of Engineering, Oxbridge College, Kunming University of Science and Technology, Kunming 650106, P.R. China *Corresponding author: E-mail: lm_paper@qq.com

Corresponding Author(s) : Fashe Li1

Asian Journal of Chemistry, Vol 26 No Supplementary Issue

Abstract

This study investigates the use of the p-toluene sulphonic acid as catalyst and a microwave heating system for synthesizing gallic acid esters from gallic acid and acohols, which include methyl-3,4,5-trihydroxybenzoate, ethyl gallate, propyl gallate, isopropyl gallate, n-butyl gallate, isobutyl gallate and tertbutyl gallate. The gallic acid esters are analyzed by the FTIR. The antioxidant effect to biodiesel and the raw oils are studied with the dosage of 1000 ppm each and it shows better oxidation stability. With the increase of the antioxidants isopropyl gallate and isobutyl gallate, the induction period of the biodiesel are longer. When 250 ppm of isopropyl gallate and 600 ppm of isobutyl gallate are added, the oxidation stability of biodiesel can meet Chinese national standards and European standards.

Keywords

Biodiesel Antioxidants Antioxidant properties Induction period.
Li1, F., Li3, M., Bao1, G., Wang1, H., Li1, Y., Du1, W., & Li1, X. (2014). Preparation of Gallic Acid Esters and Their Antioxidant Properties for Biodiesel. Asian Journal of Chemistry, 26(27), 217–221. https://doi.org/10.14233/ajchem.2014.19051
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