固体酸催化合成1,4-丁二醇二丙烯酸酯动力学  

Kinetics of Catalytic Synthesis of 1,4-Butanediol Diacrylate over SO_4^(2-)/TiO_2-SnO_2 Solid Acid

作　　者：崔文岗[1] 马海霞[1] 骆军容[2] 张明伟[1] 梁世伟 高明明[1] 李稳宏[1] Cui Wengang;Ma Haixia;Luo Junrong;Zhang Mingwei;Liang Shiwei;Gao Mingming;Li Wenhong(School of Chemical Engineering, Northwest University, Xi’an 710069, China;General Affairs Department, Fourth Military Medical University, Xi’an 710032, China)

机构地区：[1]西北大学化工学院,陕西西安710069 [2]第四军医大学校务处,陕西西安710032

出　　处：《化学反应工程与工艺》2016年第1期55-59,共5页Chemical Reaction Engineering and Technology

摘　　要：对1,4-丁二醇与丙烯酸在固体超强酸SO42-/Ti O2-Sn O2作用下,催化合成1,4-丁二醇二丙烯酸酯的反应动力学进行研究。考察了固体超强酸催化作用下1,4-丁二醇、丙烯酸以及体系水含量对初始反应速率的影响,以Elay-Rideal机理为理论基础,建立了固体超强酸SO42-/Ti O2-Sn O2为催化剂合成工艺的动力学模型。实验数据和模型计算结果的比较表明,该模型精确度良好,实验验证模型预测值与实验值相对偏差小于5%,为1,4-丁二醇二丙烯酸酯合成工艺的优化提供了依据。The 1,4-butanediol diacrylate was synthesized and its reaction kinetic model was studied using1,4-butanediol and acrylic acid catalyzed by solid superacid SO42-/TiO2-SnO2. The effects of theconcentration of acrylic acid, 1,4-butanediol and water on the initial reaction rate have also been investigated.Based on Elay-Rideal mechanism, the kinetic model for the solid super acid catalyst synthesis process hasbeen established and proved to be validated though the experiments and mathematical methods. The resultsshowed excellent accuracy of the experimental verification model. The relative errors between the valuespredicted by the model and those from the actual experiment was less than 5% which provided goodpredication for optimization of the synthesis process of 1,4-butanediol diacrylate.

关 键 词：1 4-丁二醇二丙烯酸酯 1 4-丁二醇丙烯酸固体超强酸 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]