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首页> 外文会议>2010 International Conference on Digital Manufacturing and Automation >Catalytic Conversion of Glucose to 5-hydroxymethylfurfural over Aluminum Acetylacetonate in the Two-phase Water-Methylisobutylketone System
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Catalytic Conversion of Glucose to 5-hydroxymethylfurfural over Aluminum Acetylacetonate in the Two-phase Water-Methylisobutylketone System

机译：两相水-甲基异丁基酮体系中的乙酰丙酮铝催化葡萄糖转化为5-羟甲基糠醛

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摘要

5-hydroxymethylfurfural (5-HMF) is a kind of new green platform chemical with wide application. Glucose, which is the unit compound of cellulose, is one of the most important starting chemicals from biomass. With its low cost and wide supply, the conversion of glucose to HMF has attracted the interests of researchers. In this work, a systematic study has been conducted to evaluate the effects of operating conditions on glucose conversion to to 5-HMF using Al(acac)3 catalyst in water-4-Methyl-2-pentanone two-phase system. The results showd that the conversion rate and the selectivity of glucose to 5-HMF with Al(acac)3 as catalyst were higher than those with AlCl3, CrCl3, Zr3(PO4)4, MCM-41 molecular sieves and 732 Cation Exchange Resin, so Al(acac)3 catalyst was selected for further studies. The optimum preparation conditions of 5- HMF catalyzed by Al(acac)3 were as follows: temperature at 180 ??, dosage of catalyst at mol% (based on the mass fraction of glucose), two phase ratio of 8:2 (water/methylisobutylketone), reaction time of 1.5 h. The conversion rate of glucose was found to be 98.91%, the 5-HMF yield and product selectivity was 45.91% and 46.14% respectively.
机译：5-羟甲基糠醛（5-HMF）是一种具有广泛应用的新型绿色平台化学品。葡萄糖是纤维素的单元化合物，是生物质中最重要的起始化学物质之一。由于其低成本和广泛供应，葡萄糖向HMF的转化吸引了研究人员的兴趣。在这项工作中，进行了系统的研究，以评估在水-4-甲基-2-戊酮两相系统中使用Al（acac）3催化剂将葡萄糖转化为5-HMF的操作条件的影响。结果表明，以Al（acac）3为催化剂，葡萄糖对5-HMF的转化率和选择性均高于AlCl3，CrCl3，Zr3（PO4）4，MCM-41分子筛和732阳离子交换树脂。因此选择了Al（acac）3催化剂进行进一步研究。 Al（acac）3催化5- HMF的最佳制备条件如下：温度为180℃，催化剂用量为mol％（基于葡萄糖的质量分数），两相比为8：2（水/甲基异丁酮），反应时间为1.5 h。发现葡萄糖的转化率为98.91％，5-HMF的产率和产物选择性分别为45.91％和46.14％。

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