硅胶负载硫酸型固体催化剂催化合成没食子酸丙酯的研究  

Synthesis of propyl gallate over silica gel supported sulfuric acid solid catalyst

作　　者：董刚 刘兰香[2] 李坤[2] 张雯雯[2] 刘义稳 陈清龙 张弘[2] 孙彦琳[1] DONG Gang;LIU Lan-xiang;LI Kun;ZHANG Wen-wen;LIU Yi-wen;CHEN Qing-long;ZHANG Hong;SUN Yan-lin(Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,China;Engineering and Technology Research Center for Special Forest Resources of State Administration of Forestry and Grassland,Research Institute of Resources Insects,Chinese Academy of Forestry,Kunming 650233,China;Engineering Technology Research Center for Efficient Cultivation and Deep Processing of Gallnut of State Administration of Forestry and Grassland,Wufeng Chicheng Biotechnology Co.,Ltd.,Yichang 443413,China)

机构地区：[1]昆明理工大学化学工程学院,云南昆明650500 [2]中国林业科学研究院资源昆虫研究所,国家林业和草原局特色森林资源工程技术研究中心,云南昆明650233 [3]五峰赤诚生物科技股份有限公司,国家林业和草原局五倍子高效培育与精深加工工程技术研究中心,湖北宜昌443413

出　　处：《现代化工》2021年第3期105-110,共6页Modern Chemical Industry

基　　金：国家重点研发计划(2018YFD0600404)。

摘　　要：没食子酸丙酯是一种主要用于油脂或油基食品且性能优良的抗氧化剂。通过考察不同的载体、负载酸种类及浓度、焙烧温度等对没食子酸丙酯收率的影响,设计并制备了一种以硅胶为载体的非均相催化剂来高效催化合成没食子酸丙酯。结果表明,在该硅胶负载硫酸型固体催化剂质量为反应原料总质量的6.1%、反应时间为18 h时,可获得没食子酸丙酯的最高收率为93.0%,产品纯度≥98.0%。与传统的均相催化剂相比,硅胶负载硫酸型固体催化剂非均相催化合成没食子酸丙酯具有催化剂易回收、催化效率高、经济绿色、酸排放量小等优点,有潜在的工业应用价值和前景。Propyl gallate is a kind of antioxidant with excellent properties,mainly used in fat or oil-based foods.Through investigating the influences of different carriers,types and concentration of supported acid,calcination temperature on the yield of propyl gallate,a heterogeneous catalyst with silica gel as carrier is designed and prepared to catalyze the synthesis of propyl gallate efficiently.The results show that the highest yield of propyl gallate can reach 93.0%,with a purity of more than 98.0% as the dosage of catalyst is 6.1% of the total mass of the reaction raw materials and reaction has performed for 18 hours.Compared with traditional homogeneous catalysts,heterogeneous silica gel supported sulfuric acid type solid catalysts have the advantages in catalyzing the synthesis of propyl gallate,such as easy recovery of catalyst,high catalytic efficiency,good economic performance,environmental friendly,and few acid emissions,showing a potential industrial application value and prospects.

关 键 词：催化 酯化 硅胶 多相反应 没食子酸丙酯 

分 类 号：TQ426.6[化学工程] TS202.3[轻工技术与工程—食品科学]