杂多酸及其盐催化D-果糖选择性合成5-羟甲基糠醛
Release Time:2019-03-11 Hits:
Indexed by: Journal Article
Date of Publication: 2012-02-15
Journal: 精细化工
Included Journals: CSCD、ISTIC、PKU
Volume: 29
Issue: 2
Page Number: 130-133,204
ISSN: 1003-5214
Key Words: 生物质;果糖;5-羟甲基糠醛;杂多酸;杂多酸盐;催化技术
Abstract: 考察了杂多酸及其盐对果糖脱水制备HMF的催化性能.研究表明,磷钨酸铯盐催化效果较好,高温反应对5-羟甲基糠醛(HMF)生成有利,添加助剂聚乙烯吡咯烷酮(PVP)可提高产率.通过对反应温度、催化剂、加料方式的考察,得出优化的反应条件为:将果糖溶于DMSO中,添加质量分数20％的PVP,升温至155℃加入占果糖摩尔分数1％的CsH2PW12 O40,反应5min,产率77.9％.
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