日用化学工业Issue(11)：601-605,5.DOI:10.13218/j.cnki.csdc.2015.11.001
乙二醇葡糖苷的合成及其动力学研究
Synthesis of glycol polyglucoside and its kinetics
张海红 1张然 1李晓元 1郑学明 1尚会建1
作者信息
- 1. 河北科技大学化学与制药工程学院，河北石家庄 050018
- 折叠
摘要
Abstract
Synthesis of glycol polyglucoside from glucose and glycol with a kind of new green strong -acid cation exchange resin as catalyst was studied. Factors affecting the reaction such as catalyst dosage,mole ratio of glycol to glucose and reaction temperature were investigated. Based on experimental data,the reaction mechanism of preparation process was proposed. The reaction kinetics model was established,and parameters of the kinetics equation were decided. The optimum reaction conditions were obtained as:n(glycol)∶n(glucose)=7∶ 1;dosage of the strong - acid cation exchange resin catalyst,35% of the mole of glucose;reaction temperature,100 ℃ for 5 h. Under such conditions,conversion of glucose can reach 99.33%. When the catalyst was reused for seven times,conversion of glucose is basically unchanged,indicating a rather good reusing performance. The experiment results showed that the reaction can be considered as a quasi first order reversible reaction. The apparent activation energy is 41.572 kJ/mol,and the pre - exponential factor is 7.716 × 103 min-1 .关键词
乙二醇葡糖苷/强酸性阳离子交换树脂/合成/动力学Key words
glycol polyglucoside/strong-acid cation exchange resin/synthesis/kinetics分类
化学化工引用本文复制引用
张海红,张然,李晓元,郑学明,尚会建..乙二醇葡糖苷的合成及其动力学研究[J].日用化学工业,2015,(11):601-605,5.
