摘要
以果糖为原料脱水合成5-羟甲基糠醛,考察了磷钨酸、硅钨酸、磷钨酸铬、磷钼酸和氧化铌催化剂对5-羟甲基糠醛收率的影响;并对催化剂用量、溶剂种类、反应温度、反应时间等条件进行了优化;利用X射线衍射、红外光谱对催化剂进行了表征。结果表明,最佳工艺条件为:0.5500 g果糖、0.0500 g磷钨酸、5 m L二甲基亚砜、110℃反应3 h,5-羟甲基糠醛的收率达95.31%。
5-Hydroxymethyl furfural(5-HMF)is synthesized from fructose by dehydration.The effects of phosphotungstic acid,silicotungstic acid,chromium phosphotungstate,phosphomolybdic acid and niobium oxide catalysts on the yield of 5-HMF are respectively investigated.Reaction conditions,such as catalyst dosage,solvent type,reaction temperature and reaction time,are optimized.The catalysts are characterized by X-ray diffraction and infrared spectroscopy.It is indicated that the yield of 5-HMF reaches 95.31%under the optimal conditions of 0.5500 g fructose,0.0500 g phosphotungstic acid and 5 m L dimethyl sulfoxide at 110℃for 3 h.
作者
李嘉梁
段克立
杨嘉轩
李朋飞
邢婷婷
王伟
李志洲
邵先钊
季晓晖
LI Jia-liang;DUAN Ke-li;YANG Jia-xuan;LI Peng-fei;XING Ting-ting;WANG Wei;LI Zhi-zhou;SHAO Xian-zhao;JI Xiao-hui(Shaanxi Key Laboratory for Fundamentals and Applications of Catalysis,College of Chemistry and Environmental Science,Shaanxi University of Technology,Hanzhong 723000,China)
出处
《现代化工》
CAS
CSCD
北大核心
2021年第S01期269-273,共5页
Modern Chemical Industry
基金
陕西省教育厅2020年度重点科学研究计划(20JS013)
陕西省催化基础与应用重点实验室开放基金(SLGPT2019KF01-24)
陕西省大学生创新实验项目(S202010720056)
关键词
果糖
5-羟甲基糠醛
杂多酸
fructose
5-hydroxymethyl furfural
heteropoly acid
