Nano-SO42&ndash;/TiO2 Catalyzed Eco-Friendly Esterification of Dicarboxylic Acids

Xianbing Ji; Yinxia Chen; Zuoyuan Shen

doi:10.14233/ajchem.2014.18202

Issue

Vol. 26 No. 17 (2014): Vol 26 Issue 17

Issue Published : August 27, 2014

This work is licensed under a Creative Commons Attribution 4.0 International License.

Nano-SO42–/TiO2 Catalyzed Eco-Friendly Esterification of Dicarboxylic Acids

https://doi.org/10.14233/ajchem.2014.18202

Xianbing Ji

Environmental Management College of China, Qinhuangdao 066004, Hebei Province, P.R. China ; Lanzhou Institute of Chemical Physics Chinese Academy of Sciences, State Key Laboratory of Solid Lubrication, Lanzhou 730000, P.R. China

Yinxia Chen

Environmental Management College of China, Qinhuangdao 066004, Hebei Province, P.R. China

Zuoyuan Shen

Environmental Management College of China, Qinhuangdao 066004, Hebei Province, P.R. China

Corresponding Author(s) : Yinxia Chen

chyxsd@163.com

Asian Journal of Chemistry, Vol. 26 No. 17 (2014): Vol 26 Issue 17
Article Published : August 12, 2014

Abstract

Nano-SO₄^2–/TiO₂ was prepared by wet impregnation method. The structure and properties of the prepared nano-SO₄^2–/TiO₂ catalyst was characterized by XRD, SEM, TEM and BET analysis. The catalytic activities of the catalysts were tested by the esterification of sebacic acid with 2-ethyl hexanol and a series of other dicarboxylic acid. The influence factors on the reaction, such as the catalyst calcination temperature, reaction temperature/time and the molar ratio of acid to alcohol were extensively explored. Nano-SO₄^2–/TiO₂ prepared exhibited much higher catalytic activity in esterification reactions. By applying the optimized reaction condition, i.e. 160 ºC, 2 h, 5 wt % nano-SO₄^2–/TiO₂ with a 1:3 molar ratio of sebacic acid to 2-ethyl hexanol, higher than 99 % isolated of the desired ester could be obtained.

Keywords

Solid acid catalyst Esterification Nano-SO4 2–/TiO2 Dicarboxylic acids

Ji, X., Chen, Y., & Shen, Z. (2014). Nano-SO42–/TiO2 Catalyzed Eco-Friendly Esterification of Dicarboxylic Acids. Asian Journal of Chemistry, 26(17), 5769–5772. https://doi.org/10.14233/ajchem.2014.18202

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