Heteropolyanion-based ionic liquids catalyze esterification of ammonium succinate in aqueous solution

ZHANG Feng; LIANG Jinhua; HU Xi; WANG Junge; CHEN Liulong; REN Xiaoqian; JIANG Min

doi:10.11949/j.issn.0438-1157.20150131

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Heteropolyanion-based ionic liquids catalyze esterification of ammonium succinate in aqueous solution

更新时间：2025-11-26

- Heteropolyanion-based ionic liquids catalyze esterification of ammonium succinate in aqueous solution
- CIESC Journal Vol. 66, Issue 7, Pages: 2488-2497(2015)
- 作者机构：
  
  1. 南京工业大学化学化工学院,江苏,南京,210009
  2. 南京工业大学生物与制药工程学院,江苏,南京,211816
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150131
  CLC： Q028.8
- Online First：05 July 2015，
  
  Published：05 July 2015
- 稿件说明：
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ZHANG Feng, LIANG Jinhua, HU Xi, et al. Heteropolyanion-based ionic liquids catalyze esterification of ammonium succinate in aqueous solution[J]. CIESC Journal, 2015, 66(7): 2488-2497.
DOI：

ZHANG Feng, LIANG Jinhua, HU Xi, et al. Heteropolyanion-based ionic liquids catalyze esterification of ammonium succinate in aqueous solution[J]. CIESC Journal, 2015, 66(7): 2488-2497. DOI： 10.11949/j.issn.0438-1157.20150131.

摘要

将磺酸功能化离子液体有机阳离子与Keggin结构的杂多酸(HPAs)阴离子结合

合成一系列磺酸功能化离子液体杂多酸盐(HPA-ILs)

并对其结构进行了表征。将合成的杂多酸盐作为催化剂应用于丁二酸铵水溶液与正丁醇的直接酯化。与HPAs、H2SO4、[MIMPS]HSO4和Nafion®NR-50 resins等传统催化剂相比

HPA-ILs表现出更好的催化性能

并以 [MIMPS]3PMo12O40作催化剂

详细探讨并确定了本反应的最佳工艺条件。在丁二酸铵质量分数为50%

催化剂质量分数为1.0%(以丁二酸铵计)

醇铵摩尔比为5:1

反应时间为12 h

反应温度为130℃

真空度为0.02 MPa时

最佳酯收率达89.7%。催化剂重复使用6次后

酯收率仍保持在85%以上。

Abstract

Propane sulfonate (PS) functionalized organic cations were combined with Keggin heteropolyanions to synthesize a series of sulfonated organic heteropolyacid salts (HPA-ILs). Their structures were characterized by FT-IR and elemental analyses (C

N). These catalysts were applied to directly catalyze the esterification of ammonium succinate with 1-butanol in aqueous solution. Compared with HPAs

H2SO4

[MIMPS]HSO4 and Nafion®NR-50 resins

HPA-ILs exhibited excellent catalytic activities. Finally

the excellent catalyst [MIMPS]3PMo12O40 was selected to investigate systemically the reaction conditions. The optimization of the reaction conditions was ammonium succinate concentration 50% (mass)

catalyst dosage 1.0% (based on ammonium succinate)

n(1-butanol):n(ammonium succinate)=5:1

reaction time 12 h

reaction temperature 130℃ and vacuum degree 0.02 MPa. The highest yield of esters could reach 89.7%. After reusing 6 times the catalyst still showed the superior catalytic performance with yield of above 85%.

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