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Citation: SHAN Yu-Hua, DENG Jun-Hui, LIN Fu-Rong, LU Mo-Hong, LI Ming-Shi. Immobilization of Functionalized Ionic Liquid on Silica and Its Application in 5-Hydroxymethylfurfural Synthesis[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 1428-1434. shu

Immobilization of Functionalized Ionic Liquid on Silica and Its Application in 5-Hydroxymethylfurfural Synthesis

1.
Key Laboratory of Jiangsu Fine Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213164

Corresponding author: SHAN Yu-Hua,
Received Date: 22 February 2009
Available Online: 29 June 2009
Fund Project: 江苏省高校自然科学重大基础研究项目(05KJA43004) (05KJA43004)江苏省精细石油化工重点实验室开放研究课题(200606) (200606)江苏工业学院科技资金资助项目(2005) (2005)

The sulfonic group functionalized ionic liquid—1-H-3-(3-sulfonic acid)propylimidazolium chloride was immobilized on micro-ball silica-gel with γ-chloropropyltrimethoxysilane as coupling agent to obtain the silica-gel immobilized ionic liquid(IL3).IL3 was characterized by SEM,FTIR,DSC-TG,¹³C NMR,BET,and acidity measurement.Its catalytic performance in the synthesis of 5-hydroxymethylfurfural(HMF) from fructose dehydration was investigated.The results indicate that 1-H-3-(3-sulfonic acid)propylimidazolium chloride could be immobilized on micro-ball silica-gel surface by chemical bonds,and IL3 is a good catalyst for the HMF synthesis from fructose dehydration.The yield of HMF was up to 82.1% with 45.4% loading of IL3 as the catalyst and ethylene glycol monomethyl ether(EGME) as solvent at 115 ℃ over 5 h.After IL3 reused four times,the yield of HMF decreased from 82.1% to 53.0%.
- hydroxymethylfurfural,
- functionalized ionic liquid,
- Immobilization,
- silica-gel,
- fructose
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