Synthesis of n-butyl acetate by ether-functionalized ionic liquid

HU Tiantian; ZHAO Dishun; WU Yu; ZHANG Shuanli; HU Shihai; ZHAI Jianhua

doi:10.11949/j.issn.0438-1157.20161017

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Synthesis of n-butyl acetate by ether-functionalized ionic liquid

更新时间：2025-11-26

- Synthesis of n-butyl acetate by ether-functionalized ionic liquid
- CIESC Journal Issue 1, Pages: 136-145(2017)
- 作者机构：
  
  1. 河北科技大学化学与制药工程学院,河北,石家庄,050018
  2. 石家庄新宇三阳实业有限公司,河北,石家庄,051430
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161017
  CLC： 643.32
- Online First：05 January 2017，
  
  Published：05 January 2017
- 稿件说明：
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HU Tiantian, ZHAO Dishun, WU Yu, et al. Synthesis of n-butyl acetate by ether-functionalized ionic liquid[J]. CIESC Journal, 2017, (1): 136-145.
DOI：

HU Tiantian, ZHAO Dishun, WU Yu, et al. Synthesis of n-butyl acetate by ether-functionalized ionic liquid[J]. CIESC Journal, 2017, (1): 136-145. DOI： 10.11949/j.issn.0438-1157.20161017.

摘要

合成了5种醚基功能化酸性离子液体[Me（OEt）1-MOR-C3SO3H][MeSO3]、[Me（OEt）2-MOR-C3SO3H][MeSO3]、[Me（OEt）3-MOR-C3SO3H][MeSO3]、[2（C3SO3H-MOR）-（OEt）200][2MeSO3]、[2（C3SO3H-MOR）-（OEt）400][2MeSO3]，使用红外光谱和核磁共振氢谱对合成的离子液体结构进行表征，考察离子液体的黏度、溶解性和腐蚀性。以正丁醇和乙酸的酯化反应考察了离子液体的催化活性，并使用响应面分析法优化反应工艺。结果表明，当酸醇摩尔比为1.2：1、催化剂[2（C3SO3H-MOR）-（OEt）400][2MeSO3]用量为醇质量的5%、带水剂用量为醇质量的16%时，在90℃下反应5 h，酯收率可达97.8%，离子液体经回收干燥重复使用8次催化活性没有明显的降低。

Abstract

Five ether-functionalized ionic liquids(ILs)

containing[Me(OEt)1-MOR-C3SO3H][MeSO3]

[Me(OEt)2-MOR-C3SO3H][MeSO3]

[Me(OEt)3-MOR-C3SO3H][MeSO3]

[2(C3SO3H-MOR)-(OEt)200][2MeSO3]and[2(C3SO3H-MOR)-(OEt)400][2MeSO3] were synthesized and characterized by the Fourier transform infrared spectrometer and nuclear magnetic resonance spectrometer.The ionic liquid viscosity

solubility and corrosion were investigated.The promotion effect of ether-functionalized ILs in esterification of acetic acid with butyl alcohol was investigated and the reaction process was optimized using response surface analysis.The yield of n-butyl acetate was up to 97.8% under the optimized conditions:response surface analysis(RSA) of n(CH3COOH):n(C4H9OH)=1.2:1

the mass of catalyst[2(C3SO3H-MOR)-(OEt)400][2MeSO3]was 5% of the quality of butyl alcohol

the mass of water carrying agent was 30% of the quality of butyl alcohol

temperature was 90℃

and reaction time was 5 h.The catalysts could be recycled for 8 times without obviously decline of catalytic activity.

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