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首页> 外文期刊>RSC Advances >Dehydration of glucose to 5-hydroxymethylfurfural and 5-ethoxymethylfurfural by combining Lewis and Bronsted acid
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Dehydration of glucose to 5-hydroxymethylfurfural and 5-ethoxymethylfurfural by combining Lewis and Bronsted acid

机译：通过组合路易斯和富甲酸脱水至5-羟甲基糠醛和5-乙氧基甲基呋喃布的脱水

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摘要

In this work, glucose was transformed into 5-hydroxymethylfurfural (HMF) and 5-ethoxymethylfurfural (EMF) in the presence of AlCl3 center dot 6H(2)O and a Bronsted solid acid catalyst (PTSA-POM). GVL (gamma-valerolactone)-water and ethanol-water solvent systems were evaluated in the dehydration reaction of glucose into HMF and EMF, respectively. Water content and dosage of AlCl3 center dot 6H(2)O were examined in the conversion of glucose into HMF, and some valuable chlorides (FeCl3 center dot 6H(2)O, NiCl2 center dot 6H(2)O, CrCl3 center dot 6H(2)O etc.) were also used in contrast with AlCl3 center dot 6H(2)O. Some different organic solvents were added to the ethanol-water system to explore whether it would be beneficial to the generation of EMF. A high yield of HMF (60.7%) was obtained at 140 degrees C within 60 min in GVL-water (10:1) solvent system, and total yield 42.1% of EMF and HMF (30.6% EMF, 11.5% HMF) was achieved at 150 degrees C after 30 min in an ethanol-water (9 : 1) solvent system.
机译：在该作品中，在ALCL3中心点6H（2）O和伪造的固体酸催化剂（PTSA-POM）存在下，将葡萄糖转化为5-羟甲基糠醛（HMF）和5-乙氧基甲基糠醛（EMF）。在葡萄糖的脱水反应中分别评价GV1（γ-戊酰胺）-WATE和乙醇 - 水溶剂系统分别分别为HMF和EMF。在将葡萄糖转化为HMF的葡萄糖中的含水量和剂量和剂量的含水量和剂量，以及一些有价值的氯化物（FECL3中心点6H（2）O，NiCl2中心点6h（2）O，CRCl3中心点6h （2）O等）也与ALCL3中心点6H（2）o相反使用。将一些不同的有机溶剂加入到乙醇 - 水系统中，以探索它是否有利于EMF的产生。在60分钟内在GV1-水（10：1）溶剂体系中在140℃下在140℃下获得高产率，并且达到总收率42.1％的EMF和HMF（30.6％EMF，11.5％HMF）在乙醇 - 水（9：1）溶剂系统30分钟后在150℃下。

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  • 来源
    《RSC Advances》 |2017年第66期|共6页
  • 作者

    Xin Haosheng; Zhang Tingwei; Li Wenzhi; Su Mingxue; Li Song; Shao Qun; Ma Longlong;

  • 作者单位

    Anhui Jianzhu Univ Inst Mat &

    Chem Engn Hefei 230022 Anhui Peoples R China;

    Univ Sci &

    Technol China Dept Thermal Sci &

    Energy Engn Lab Basic Res Biomass Convers &

    Utilizat Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Dept Thermal Sci &

    Energy Engn Lab Basic Res Biomass Convers &

    Utilizat Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Dept Thermal Sci &

    Energy Engn Lab Basic Res Biomass Convers &

    Utilizat Hefei 230026 Anhui Peoples R China;

    Chinese Acad Sci Guangzhou Inst Energy Convers CAS Key Lab Renewable Energy Guangzhou 510640 Guangdong Peoples R China;

    Anhui Jianzhu Univ Inst Mat &

    Chem Engn Hefei 230022 Anhui Peoples R China;

    Chinese Acad Sci Guangzhou Inst Energy Convers CAS Key Lab Renewable Energy Guangzhou 510640 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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