首页> 外文期刊>RSC Advances >The physicochemical properties of a room-temperature liquidus binary ionic liquid mixture of [HNMP][CH3SO3]/[Bmim]Cl and its application for fructose conversion to 5-hydroxymethylfurfural
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The physicochemical properties of a room-temperature liquidus binary ionic liquid mixture of [HNMP][CH3SO3]/[Bmim]Cl and its application for fructose conversion to 5-hydroxymethylfurfural

机译:[HNMP] [HNMP] [HN3SO3] / [Bmim] Cl的室温液相色素二元离子液体混合物的物理化学性质及其对5-羟甲基甲基糠醛的果糖转化的应用

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摘要

Via heating first and then cooling, binary ionic liquid (IL) mixture of N-methyl-2-pyrrolidonium methylsulfonate ([HNMP][CH3SO3]) and 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) could form a liquid at room temperature. The glass-transition temperature (T-g) characterized by DSC depends on its composition with T-g being as low as -63 degrees C. The physicochemical properties of the binary IL mixtures also vary with the composition. With the increase of the mole fraction of [Bmim]Cl, the hydrogen-bond accepting ability () of the binary IL mixture increases, but the hydrogen-bond donating ability () deceases. In this binary IL mixture, fructose could be effectively converted into 5-hydroxymethylfurfural (HMF) at room temperature. The HMF yields at a given time are found to be well correlated with the physicochemical properties of the binary mixture, especially the and values. Under specified conditions, the present IL mixture as medium for fructose dehydration into HMF is comparable to the medium formed by ILs and alcohol, where the alcohols have negative effect on the HMF formation.
机译:通过加热第一然后冷却,二元离子液体(IL)甲基-2-吡咯烷鎓甲基磺酸盐([HNMP] [CH 3])和1-丁基-3-甲基咪唑氯化铵([BMIM] Cl)的氯化物(氯化物 - 3-甲基咪唑)可以形成液体在室温下。玻璃化转变温度(T-G)表征的DSC取决于其组合物,T-g低至-63℃。二元IL混合物的物理化学性质也随该组合物而变化。随着[Bmim] Cl的摩尔级分的增加,二元IL混合物的氢键接受能力()增加,但氢键捐献能力()释放能力()。在该二元IL混合物中,在室温下可以有效地转化为5-羟甲基糠醛(HMF)的果糖。发现HMF产量在给定时间内与二元混合物的物理化学性质,特别是和值相比良好相关。在规定的条件下,本发明的IL混合物作为果糖脱水的培养基与ILS和醇形成的培养基相当,其中醇对HMF形成具有负面影响。

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  • 来源
    《RSC Advances》 |2018年第34期|共8页
  • 作者

    Xiao Yuyan; Huang Xirong;

  • 作者单位

    Shandong Univ Educ Minist China Key Lab Colloid &

    Interface Chem Jinan 250100 Shandong Peoples R China;

    Shandong Univ Educ Minist China Key Lab Colloid &

    Interface Chem Jinan 250100 Shandong Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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