【作者】 蒋柏泉； 肖琳； 叶志强； 杨文； 章茹；

【Author】 Jiang Boquan Xiao Lin Ye Zhiqiang Yang Wen Zhang Ru (School of Environmental and Chemical Engineering,Nachang University,Nanchang,Jiangxi,330031)

【机构】 南昌大学环境与化学工程学院；

【摘要】 采用多壁碳纳米管作载体担载硫酸铈催化合成内酸丁酯。分别采用单因素和正交实验方法考察了醇酸摩尔比、硫酸铈质量分率和反应时间等主要因素对丙酸转化率的影响,并确定了最佳工艺条件为:醇酸摩尔比1.5:1、硫酸铈质量分率15%和反应时间70min。在最佳工艺条件下,内酸转化率可高达96.7%。与未担载硫酸铈相比,碳纳米管担载硫酸铈具有催化活性高、用量少和丙酸转化率高等显著优点。更多还原

【Abstract】 Multiple-walled carbon Nanotubes were used as carrier to load cerous sulfate catalyst for catalytic synthesis of n-butyl propionate Single factor and orthogonal experiment methods were applied to investigate the effects of the molar ratio of butyl alcohol to propionic acid,cerous sulfate mass fraction and reaction time on the conversion of propionic acid and the optimal technical conditions were determined as:ratio of butyl alchhol and propionic acid 1.5:I,cerous sulfate mass fraction 15% and reaction time 70 min.Under the optimal technical conditions the conversion of propionic acid reached 96.7%. Compared with the unloaded cerous sulfate,the multiple-walled carbon nanotube loaded cerous sulfate possessed some obvious advantages of higher catalytic activity,less use level and higher conversion of propionic acid.更多还原