微波辐射下氯化锌催化纤维素转化为呋喃类物质的研究

杨磊; 黎钢; 杨芳; 刘雅莉; 张松梅

微波辐射下氯化锌催化纤维素转化为呋喃类物质的研究

河北工业大学化工学院, 天津 300130

基金项目: 国家自然科学基金(20876032); 天津市应用基础及前沿技术研究计划重点资助项目(IIJCZDJC23600); 河北省应用基础研究计划重点基础研究项目(11963924D)。

详细信息

通讯作者:
黎钢, Tel and Fax: 022-60202443; E-mail: ligang@hebut.edu.cn。

中图分类号: TQ352.78
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出版历程
- 收稿日期: 2011-04-15
- 刊出日期: 2012-03-31

Conversion of cellulose to furans catalyzed by zinc chloride under microwave irradiation

School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China

摘要

摘要: 以氯化锌作为溶剂和催化剂,利用微波辅助氯化锌降解纤维素,致使纤维素直接转化为5-羟甲基糠醛(5-HMF)和1-(2-呋喃基)-2-羟基-乙酮两种呋喃类物质。通过考察反应温度、反应时间、氯化锌用量、纤维素加入量、微波功率和加热方式等因素对其摩尔产率影响可知,在140 mL质量分数为69%的ZnCl₂溶液中,纤维素用量为1 g,反应温度为135 ℃,反应时间为5 min,微波功率为500 W时,5-羟甲基糠醛的摩尔产率达到19.4%,微波功率为600 W时,1-(2-呋喃基)-2-羟基-乙酮的摩尔产率达到12.0%。
- 纤维素 /
- 氯化锌 /
- 微波 /
- 5-羟甲基糠醛 /
- 1-(2-呋喃基)-2-羟基-乙酮
Abstract: Cellulose was degraded in concentrated ZnCl₂ solution which acted as a solvent and catalyst under microwave irradiation. Cellulose was directly converted into two main furans, 5-hydroxymethyl furfural (5-HMF) and 1-(furan-2-yl)-2-hydroxyethanone. Factors affecting the mol yields of these two compounds were investigated at different temperatures, reaction times, concentrations of ZnCl₂, cellulose contents, and microwave powers. For 1 g cellulose reacted with 140 mL 69% ZnCl₂ solution, the mol yields of 5-HMF reached to 19.4% under the microwave power of 500 W and 1-(furan-2-yl)-2-hydroxyethanone reached to 12.0% under the microwave power of 600 W at 135 ℃ within 5 min.
- cellulose /
- ZnCl₂ /
- microwave /
- 5-HMF /
- 1-(furan-2-yl)-2-hydroxyethanone

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参考文献(14)

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