Preparation of 5-hydroxymethylfurfural from fructose in acidic ionic liquids
Catalytic conversion of fructose into 5-hydroxymethylfurfural (5-HMF) in several kinds of acidic ionic liquid acting both as solvent and catalyst was explored. A fructose conversion of 99.9％ with a 5-HMF yield of 81.7％ was achieved in 30 min reaction time at 110 ℃ in HMIMC1. No large decrease in 5-HMF yield occurred for initial fructose concentrations of up to 20 wt.％ in HMIMC1, and it was confirmed that the ionic liquid could be recycled and exhibited constant activity for 5 successive trials. Compared with HMIMC1, BMIMHSO4 and HMIMHSO4 were proven to be less effective with lower 5-HMF yields for the preparation of 5-HMF due to the formation of black solid humins.
acidic ionic liquids fructose 5-hydroxymethylfurfural biomass dehydration
QI Xinhua LI Luyang GUO Haixin
Key Laboratory of Pollution Processes ami Environmental Criteria (Ministry of Education), College ojEnvironmental Science and Engineering Sankai University, Tian-jin 300071, China
国际会议
The 3rd Asian Conference on Molten Salts and Ions Liquids 2011(第三届亚洲熔盐与离子液体会议)
哈尔滨
英文
173-176
2011-01-06（万方平台首次上网日期，不代表论文的发表时间）