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题名: An ionic liquid-organics-water ternary biphasic system enhances the 5-hydroxymethylfurfural yield in catalytic conversion of glucose at high concentrations
作者: Zhou, Jinxia1, 2, 3;  Xia, Zhi1, 2;  Huang, Tingyu1, 2;  Yan, Peifang1, 2;  Xu, Wenjuan1, 2;  Xu, Zhanwei1, 2;  Wang, Jianji4;  Zhang, Z. Conrad1, 2
刊名: GREEN CHEMISTRY
发表日期: 2015
DOI: 10.1039/c5gc01039j
卷: 17, 期:8, 页:4206-4216
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Increasing the glucose loading in the 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) ionic liquid containing a dissolved CrCl3 catalyst system led to excessive formation of humins and a serious decrease in the 5-hydroxymethylfurfural (5-HMF) yield. A biphasic system containing glycol dimethyl ether (GDE) as the extraction phase, and [BMIM]Cl/CrCl3/glucose in combination with a partitioned amount of GDE and an appropriate amount of water as the reaction phase was found to be highly efficient for the reaction; CrCl3 catalyzed the formation of 5-HMF in 64.5 mol% yield from a very high glucose concentration (80 wt% with respect to the ionic liquid) at 108 degrees C. This 5-HMF yield in the [BMIM]Cl-GDE-H2O ternary biphasic system nearly doubled that obtained in the single [BMIM]Cl/CrCl3/glucose reaction phase. Importantly, the GDE phase contained about 56% of the generated 5-HMF without detectable contamination by the ionic liquid or carbohydrates. GDE served multiple functions: as a hydrogen-bond acceptor, it exhibited excellent extraction performance for 5-HMF; due to its low boiling point and suitable solubility saturation point in the ionic liquid, a sustained GDE bubbling phenomenon in the ionic liquid phase was observed that promoted the rate of inter-phase mass-transfer of 5-HMF in reactions; and GDE mediated the [BMIM]Cl phase to a reduced viscosity. In addition, an appropriate amount of water in the ternary system promoted the extraction efficiency of 5-HMF and also lowered the viscosity of [BMIM]Cl/glucose. The ionic liquid-organics-water ternary biphasic system has been demonstrated for high 5-HMF productivity and separation efficiency.
关键词[WOS]: D-FRUCTOSE ;  DEHYDRATION ;  CELLULOSE ;  BIOMASS ;  ISOMERIZATION ;  SELECTIVITY ;  EXTRACTION ;  MEDIA ;  ACID ;  HMF
语种: 英语
WOS记录号: WOS:000358887300014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146428
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China
3.Dalian Univ, Coll Environm & Chem Engn, Dalian 116012, Peoples R China
4.Henan Normal Univ, Minist Educ, Key Lab Green Chem Media & React, Sch Chem & Chem Engn, Xinxiang, Henan, Peoples R China

Recommended Citation:
Zhou, Jinxia,Xia, Zhi,Huang, Tingyu,et al. An ionic liquid-organics-water ternary biphasic system enhances the 5-hydroxymethylfurfural yield in catalytic conversion of glucose at high concentrations[J]. GREEN CHEMISTRY,2015,17(8):4206-4216.
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