Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent

Yishan Zhou; Hao Qin; Hongye Cheng; Lifang Chen; Bingjian Zhang; Zhiwen Qi

doi:10.1016/j.cjche.2020.10.005

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Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent
- Chinese Journal of Chemical Engineering Vol. 36, Issue 8, Pages: 120-127(2021)
- Affiliations：
  
  1. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
  2. Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province, Sun Yat-sen University,Guangzhou,China,510275
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.10.005
  CLC：
- Published：2021
- Accepted：
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Yishan Zhou, Hao Qin, Hongye Cheng, Lifang Chen, Bingjian Zhang, Zhiwen Qi. Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent[J]. Chinese Journal of Chemical Engineering, 2021, 36(8): 120-127.
DOI：

Yishan Zhou, Hao Qin, Hongye Cheng, Lifang Chen, Bingjian Zhang, Zhiwen Qi. Reactive extraction for synthesizing long chain ester butyl hexanoate intensified by deep eutectic solvent[J]. Chinese Journal of Chemical Engineering, 2021, 36(8): 120-127. DOI： 10.1016/j.cjche.2020.10.005.

摘要

Abstract

Butyl hexanoate (BuHE) is an important long-chain ester that is widely used in the food

beverage and cosmetic industries. In this work

reactive extraction concept was proposed to intensify the BuHE formation in a biphasic system

in which deep eutectic solvent (DES) comprising 2-methylimidazole (2-MIm) and

-toluenesulfonic acid (PTSA) was used as dual solvent-catalyst. First

the effect of 2-MIm to PTSA molar ratio on esterification was investigated to determine the optimum DES of[2-MIm:2PTSA

]

which was characterized by FT-IR and TGA. Then

the liquid-liquid equilibrium (LLE) and esterification experiments were carried out to confirm the extraction and catalytic effect of[2-MIm:2PTSA

]

respectively. Afterwards

the pseudo-homogeneous kinetic model was employed to describe the esterification kinetics. Finally

the intensification mechanism of reactive extraction for BuHE formation was proposed according to the experiments and interaction effect analysis.

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