Mechanochemical-Assisted Production Of 5-Hydroxymethylfurfural From High Concentration Of Cellulose
文献类型: 外文期刊
作者: Shen, F; Sun, S; Zhang, X; Yang, JR; Qiu, M; Qi, XH
作者机构:
关键词: Ball milling; Metal salt; Lignocellulose; 5-Hydroxymethylfurfural; Biomass
期刊名称: CELLULOSE
ISSN: 0969-0239
年卷期: 2020 年 27 卷 6 期
页码:
收录情况: JCR(2021版) ; EI(2021版)
摘要: Direct production of the platform chemical 5-hydroxymethylfurfural (5-HMF) from cellulose is challenging due to the rigid structure of cellulose. Herein, 5-HMF was effectively obtained from cellulose with high loading concentrations (> 20 wt.%) via an Al-2(SO4)(3)-assisted mechanochemical method. The Al-2(SO4)(3) not only acted as catalyst for its Lewis and Bronsted acidity, but also assisted the disruption of the hydrogen bonds among cellulose molecules during ball milling pretreatment. The particle size and crystallinity of the cellulose greatly decreased after Al-2(SO4)(3)-assisted ball milling pretreatment. The effects of various factors, including the organic solvent, reaction temperature and time, catalyst dose, and substrate concentration, on the yield of 5-HMF from cellulose were studied. A yield of 5-HMF up to 43.5% was obtained from cellulose via the developed mechanochemical-assisted method. A 36.1% yield of 5-HMF was retained when the initial cellulose loading concentration was as high as 21.6 wt.%. The green and efficient mechanochemical-assisted method was applicable to the efficient coproduction of 5-HMF and furfural from several waste biomass feedstocks. [GRAPHICS] .
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