Esterification of glycerol with acetic acid using double SO3H-functionalized ionic liquids as recoverable catalysts

Xiumei Liu; Huiyuan Ma; Yue Wu; Chang Wang; Miao Yang; Peifang Yan; Urs Welz-Biermann

doi:10.1039/C0GC00732C

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Esterification of glycerol with acetic acid using double SO₃H-functionalized ionic liquids as recoverable catalysts†

Xiumei Liu,*^a Huiyuan Ma,^b Yue Wu,^b Chang Wang,^a Miao Yang,^a Peifang Yan^a and Urs Welz-Biermann*^a

Author affiliations

* Corresponding authors

^a China Ionic Liquid Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
E-mail: uwb@dicp.ac.cn
Fax: + 86-411-84379992
Tel: + 86-411-84379992

^b School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, China

Abstract

Esterification of glycerol with acetic acid was studied using a series of Brønsted acidic ionic liquids as catalysts. The results indicate that double SO₃H-functionalized ionic liquids show high catalytic activity and fair reusability even at very low catalyst loadings, while the conventional non-functionalized ionic liquids show poor activity. The Brønsted acidity–catalytic activity relationships were also investigated and the results showed that the sequence of the catalytic activity observed in the transformation was in good agreement with the Brønsted acidity order determined by the Hammett method.

This article is part of the themed collection: 2nd Asia Pacific Conference on Ionic Liquids and Green Processes

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Article information

DOI: https://doi.org/10.1039/C0GC00732C
Article type: Paper
Submitted: 26 Oct 2010
Accepted: 07 Jan 2011
First published: 09 Feb 2011

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Green Chem., 2011,13, 697-701

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Esterification of glycerol with acetic acid using double SO₃H-functionalized ionic liquids as recoverable catalysts

X. Liu, H. Ma, Y. Wu, C. Wang, M. Yang, P. Yan and U. Welz-Biermann, Green Chem., 2011, 13, 697 DOI: 10.1039/C0GC00732C

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