【作者】 邹敏； 吴廷华； 吴瑛；

【Author】 Min Zou;Tinghua Wu;Ying Wu;Physical Chemistry Institute,Zhejiang Normal University;

【机构】 浙江师范大学物理化学研究所；

【摘要】 随着社会经济的发展,化石资源不断的被消耗,因此发展可再生资源迫在眉睫,生物质衍生的5-羟甲基糠醛(HMF)是一个重要的平台化合物。2006年,Dumesic教授领导的研究小组成功的设计出了双液相体系,水作为反应相,烷基酚作为有机溶剂催化葡萄糖转化为5-HMF,5-HMF的产率可以达到62%。本文通过沉淀法合成Cr2O3/Ag3PW12O40,用其考察在双液相体系中催化果糖制5-HMF的性能,文中以有机溶剂和水的双液相为反应体系,当5-HMF在水溶液中形成后就会萃取到上面的有机相中去,减少了副产物的产生,提高了5-HMF产率,用紫外分光光度计在284nm处测产物中5-HMF的含量,研究了时间,温度,果糖浓度对反应的影响,结果表明反应的最佳条件是:果糖0.12 g,反应温度130℃,时间1 h,催化剂用量0.04 g,得到5-HMF的产率为72%。温度对反应的影响随着温度的升高,5-HMF的产率随着反应温度的提高和时间的增大,先增加后减少,在实验中发现果糖的浓度越高,5-HMF的产率越低。更多还原

【Abstract】 With the development of society and economy,fossil resources were continuous consumed,the crisis of energy was increasely seriousness.So it is necessary to find new alternative resources,5-hydroxymethylfurfural(HMF) has emerged as important platform chemicals to meet the chemical and fuel needs of the next generation.In 2006,Dumesic designed a modified biphasic reaction system,aqueous medium as a reactive phase,alkylphenol medium as a organic phase,glucose can be conversed into 5-HMF as high yield of 62%.Base on these research,we synthesized Cr2O3/Ag3PW12O40 as catalyst.We choosed organic/H2O as biphasic system,fructose reacted for one hour.We got 72% yield of 5-HMF.Influence factors(temperature,time,concentrations of fructose) are discussed in our work.更多还原