摘要
在[EMIM]Br离子液体系中,研究了不同金属离子改性的分子筛及CrCl3改性的不同结构分子筛催化葡萄糖制5-羟甲基糠醛(HMF)的反应性能,发现Cr-Beta分子筛催化性能最佳。考察了反应温度、反应时间、催化剂用量等因素对HMF收率的影响。结果表明在反应温度130℃、时间为60min、m(离子液)∶m(葡萄糖)∶m(催化剂)=50∶5∶1(质量比)的条件下,HMF的收率可以达到35%以上。
In an ionic liquid, [ EMIM] Br, the catalytic conversion of glucose into HMF using molecular sieves modified by different metal ions and with different framework modified by CrCl3 is investigated. Cr-Beta is found to be the most effective one for the reaction. The effects of reaction temperature,time and catalyst amount on the yield of HMF are researched. A 35% yield of HMF can be obtained when the reaction is catalyzed using H-Beta molecular sieve modified by CrCl3 with mass ratio of ionic liquid,reactant and catalyst as 50： 5：1 at 130℃ for 60 min.
出处
《现代化工》
CAS
CSCD
北大核心
2010年第7期54-57,共4页
Modern Chemical Industry
基金
国家自然科学基金项目(20803005)资助
