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林产化学与工业 ›› 2014, Vol. 34 ›› Issue (2): 73-76.doi: 10.3969/j.issn.0253-2417.2014.02.013

• 研究报告 • 上一篇    下一篇

蔗糖脱水制备5-羟甲基糠醛的研究

孔珊珊, 刘仕伟, 李露, 于世涛   

  1. 青岛科技大学 化工学院, 山东 青岛 266042
  • 收稿日期:2013-03-29 出版日期:2014-04-25 发布日期:2014-04-26
  • 通讯作者: 李露,副教授,硕士生导师,主要从事精细化学品合成的研究工作;E-mail:zhanglilu@126.com。 E-mail:zhanglilu@126.com
  • 作者简介:孔珊珊(1990-),女,山东泰安人,硕士生,从事精细化学品合成的研究工作
  • 基金资助:
    山东省自然科学基金(ZR2010BQ018);山东省博士后创新专项资助(201003051)

Preparation of 5-Hydroxymethylfurfural by Dehydration of Sucrose

KONG Shan-shan, LIU Shi-wei, LI Lu, YU Shi-tao   

  1. Institute of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2013-03-29 Online:2014-04-25 Published:2014-04-26

摘要: 研究了Brönsted-Lewis复合催化体系催化蔗糖脱水制备5-羟甲基糠醛,考察了反应条件对5-羟甲基糠醛收率的影响,最佳反应条件为:蔗糖 2.0 g,复合催化体系HCl-CrCl3(质量比5:1)0.8 g,二甲基亚砜 20 mL,反应时间 30 min,反应温度 200 ℃。在上述较佳反应条件下,蔗糖转化率为 100%,5-羟甲基糠醛的收率达 72.7%。此外,CrCl3对产物5-羟甲基糠醛具有良好的稳定性,在一定程度上可避免产物继续发生水合/脱羧反应而生成甲酸和乙酰丙酸。

关键词: 蔗糖, 5-羟甲基糠醛, 催化

Abstract: The preparation of 5-hydroxymethylfurfural (HMF) from sucrose was studied in the presence of Brönsted-Lewis composite catalytic system. The effects of reaction conditions on the yield of 5-hydroxymethylfurfural were examined. The optimal reaction conditions were obtained as follows: sucrose 2.0 g, composite catalytic system HCl-CrCl3(mass ratio 5:1) 0.8 g, dimethyl sulfoxide 20 mL, reaction time 30 min and reaction temperature 200 ℃. Under the above conditions, the conversion of sucrose was 100%, and the yield of 5-hydroxymethylfurfural reached 72.7%. Moreover, CrCl3 had a good stability on the product 5-hydroxymethylfurfural. It could avoid 5-hydroxymethylfurfural over-reacting to form formic acid and levulinic acid by the hydration/decarboxylation reaction to a certain extent.

Key words: sucrose, 5-hydroxymethylfurfural, catalysis

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