水/二甲基亚砜体系中无机盐高效催化木糖脱水制备糠醛

提出了一种高效的均相催化木糖制备糠醛的方法,探讨了水/二甲基亚砜（DMSO）均相体系中不同类型的无机盐对催化木糖制备糠醛的影响.结果表明,氯盐较硫酸盐和硝酸盐表现出较高的催化活性,其中以SnCl4的催化效果最高.且它与LiCl复配时催化性能更高.当SnCl4的摩尔分数为0.8时,催化效果最好,糠醛收率达56.9%.反应条件优化实验发现,当催化剂与木糖的摩尔比为0.5：1,固液比为1：20,水与DMSO体积比为5：5时,于130 oC下反应6 h,糠醛收率达63%....

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Bibliographic Details
Published in催化学报 Vol. 35; no. 5; pp. 741 - 747
Main Author 王文菊 李慧玲 任俊莉 孙润仓 郑杰 孙广卫 刘世界
Format Journal Article
LanguageChinese
Published 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640%华南理工大学制浆造纸工程国家重点实验室，广东广州510640 2014
北京林业大学生物质化学与技术研究所，北京100083%大连工业大学辽宁省制浆造纸工程重点实验室,辽宁大连,116034
Subjects
二甲基亚砜
无机盐
木糖
氯化锂
氯化锡
糠醛
Xylose
木糖
Furfural
糠醛
Lithium chloride
Dimethyl sulfoxide
氯化锡
氯化锂
Stannic chloride
Inorganic salt
无机盐
二甲基亚砜
Online AccessGet full text
ISSN0253-9837
1872-2067
DOI10.1016/S1872-2067(14)60031-0

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Summary:提出了一种高效的均相催化木糖制备糠醛的方法,探讨了水/二甲基亚砜（DMSO）均相体系中不同类型的无机盐对催化木糖制备糠醛的影响.结果表明,氯盐较硫酸盐和硝酸盐表现出较高的催化活性,其中以SnCl4的催化效果最高.且它与LiCl复配时催化性能更高.当SnCl4的摩尔分数为0.8时,催化效果最好,糠醛收率达56.9%.反应条件优化实验发现,当催化剂与木糖的摩尔比为0.5：1,固液比为1：20,水与DMSO体积比为5：5时,于130 oC下反应6 h,糠醛收率达63%.
Bibliography:An efficient homogeneous catalytic process was developed for the dehydration of xylose to furfural using inorganic salts as catalysts in a water/dimethyl sulfoxide （DMSO） system under mild condi-tion. The effects of the types of inorganic salts were compared. The results showed that chlorides had higher catalytic performance than other salts, and SnCl4 was the most effective chloride. The catalytic activity of paired SnCl4/LiCl catalysts was much higher than that of the single salt, and when the distribution coefficient （χSnCl4） was 0.8, the maximum furfural yield was 56.9%. The effects of the reaction conditions on the furfural yield were also investigated. The highest furfural yield, 63.0%, was achieved at 130 ＆#176;C for 6 h under the optimized reaction conditions.
Wenju Wang, Huiling Li, Junli Ren, Runcang Sun, Jie Zheng, Guangwei Sun, Shijie Liu
Xylose;Furfural;Inorganic salt;Stannic chloride;Lithium chloride;Dimethyl sulfoxide
21-1195/O6
ISSN:0253-9837
1872-2067
DOI:10.1016/S1872-2067(14)60031-0