中文摘要：

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。

英文摘要：

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.