磷钨酸盐催化果糖水解制备5-羟甲基糠醛  

Conversion of fructose to 5-hydroxymethylfurfural catalyzed by heteropolyacid salts

作　　者：曲永水[1] 黄崇品[1] 宋彦磊[1] 张傑[1] 陈标华[1] 

机构地区：[1]北京化工大学化学工程学院化工资源有效利用国家重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2012年第4期12-16,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家"973"计划(2010CB226902);国家自然科学基金(20806007)

摘　　要：以磷钨酸盐为催化剂,研究了其对果糖水解过程的影响,考察了反应时间、温度、催化剂种类及用量等因素对5-羟甲基糠醛(5-HMF)收率的影响。实验结果表明:160℃时在二甲基亚砜(DMSO)中,以CePW12O40为催化剂,反应8 h,5-HMF的收率最高为99.2%;该催化剂循环使用6次,仍能保持较高活性,5-HMF的收率仍能保持90.5%。与传统加热方法相比,微波加热可明显加快反应速率,缩短反应时间。The dehydration of fructose to 5-hydroxymethylfurfural （5-HMF） catalyzed by a variety of heteropolyacid salts has been studied. The highest 5-HMF yield was 99.2% , obtained using a CePW12040 catalyst in DMSO with 5% （mass fraction） of catalyst at 160℃ with reaction time 8 h. Furthermore, the conversion of fructose to 5-HMF catalyzed by heteropolyacid salts was conducted under microwave conditions. Compared with the conventional heat- ing method, microwave heating showed a remarkable ability to both accelerate the reaction rate and improve the yield of 5-HMF. Moreover, the catalyst could be separated from the reaction mixture by a simple process at the end of the reaction and the catalyst could be reused six times without loss of activity.

关 键 词：5-羟甲基糠醛 果糖 水解 杂多酸盐 

分 类 号：O629[理学—有机化学] O643[理学—化学]