WO_3/ZrO_2固体酸催化果糖制备5-羟甲基糠醛的工艺研究  

WO_3/ZrO_2 as Solid Acid Catalyst for the Dehydration of Fructose to 5-hydroxymethylfurfural

作　　者：张迎周[1] 张玉军[1] 刘玄[1] 任亚辉[1] 许元栋[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《广东化工》2013年第7期5-6,共2页Guangdong Chemical Industry

基　　金：郑州市科技攻关项目(20120724);河南工业大学研究生科技创新基金资助项目(11YJCX04)

摘　　要：通过偏钨酸铵水溶液浸渍氢氧化锆制备了WO3/ZrO2固体酸催化剂,并考察其在果糖脱水制备5-羟甲基糠醛过程中的催化性能。考察了WO3负载量、催化剂用量、反应时间、反应温度、果糖添加量对HMF产率的影响。实验结果表明:WO3负载量为30%,以二甲基亚砜(DMSO)为溶剂,120℃下反应2h时,催化剂表现出较高的反应活性,相应HMF收率为65.4%。该催化剂循环使用5次,HMF收率仍能保持62.1%。WO3/ZrO2 catalysts were prepared by impregnation of zirconium hydroxide with ammonium metatungstate.The WO3/ZrO2 was evaluated as catalyst for the dehydration of fructose to 5-hydroxymethylfurfural.The effects of WO3 loading,the amount of catalyst,reaction time,reaction temperature and the amount of fructose were investigated in detail.With the catalyst of 30 wt% WO3 loading,HMF yield of 65.4 % could be attained at 120 ℃ for 2 h using DMSO as solvent.Moreover,the catalyst could be reused five times without loss of activity.

关 键 词：WO3 ZRO2 固体酸 果糖 HMF 

分 类 号：TQ[化学工程]