复合固体超强酸S_2O_8^(2-)/ZrO_2-SnO_2的制备及催化合成己酸异戊酯的研究  

Study on Preparation of Solid Super Acid S_2O_8^(2-)/ZrO_2-SnO_2 and Catalytic Synthesis of Isoamyl Hexanoate

作　　者：杨树[1] 崔永春[1] 

机构地区：[1]昆明学院化学科学与技术系,云南昆明650031

出　　处：《昆明学院学报》2009年第6期94-96,共3页Journal of Kunming University

摘　　要：合成了复合固体超强酸S2O82-/ZrO2-SnO2,研究了SnO2的最佳添加量,并将其应用于催化合成己酸异戊酯的反应,考查了最佳反应条件.SnO2的最佳添加量为2.0%,最佳反应条件为0.10 mol己酸使用1.0 g复合固体超强酸催化剂,醇酸摩尔比2.0,反应时间为2.5 h,己酸的酯化率可达96%以上,而且不污染环境.The solid super acid S2O8^2-/ZrO2-SnO2 is prepared, the mass fraction of SnO2 is studied, and it is applied on the catalytic synthesis of isoamyl hexanoate. The optimum conditions are selected as following：The mass fraction of SnO2 is 2.0%, the weight of catalyst is 1.0 g/0.10 mol hexanoic acid ; the mole ratio of acid and alchol is 1 ： 2.0 and the reaction time is 2.5 hour. The estefification of hexanoic acid is above 96% and it doesnt pollute the environment.

关 键 词：复合固体超强酸S2O82-/ZrO2-SnO2 催化合成 己酸异戊酯 

分 类 号：TQ426.64[化学工程]