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Chemistry and Industry of Forest Products ›› 2014, Vol. 34 ›› Issue (2): 73-76.doi: 10.3969/j.issn.0253-2417.2014.02.013

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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

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

CLC Number: