文章摘要
陈曦,王俊,韩越,吕效平,韩萍芳.常温下超声辅助合成乙酸正己酯的影响因素[J].声学技术,2011,(3):246~249
常温下超声辅助合成乙酸正己酯的影响因素
Influencing factors on the preparation of hexyl acetate by ultrasound at room temperature
投稿时间:2010-05-15  修订日期:2010-08-20
DOI:
中文关键词: 超声  乙酸正己酯  酯化反应
英文关键词: ultrasound  hexyl acetate  esterification
基金项目:南京工业大学博士论文创新基金(BSCX200804)
作者单位E-mail
陈曦 南京工业大学化学化工学院, 南京210009  
王俊 南京工业大学化学化工学院, 南京210009  
韩越 南京工业大学化学化工学院, 南京210009  
吕效平 南京工业大学化学化工学院, 南京210009 xplu@njut.edu.cn 
韩萍芳 南京工业大学化学化工学院, 南京210009  
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中文摘要:
      以乙酸、正己醇为原料,浓硫酸为催化剂,在常温下用超声合成了乙酸正己酯.实验针对有无超声、超声频率、超声声强、温度、催化剂用量等参数对催化合成乙酸正己酯的影响.得到30℃下的优化工艺条件为:声频10kHz,声强1.0 W/cm2,催化剂用量1.0%(v/v).实验结果表明,超声在常温下辅助合成乙酸正己酯有很好的效果,酯化率能达到50%以上.该方法具有反应条件温和、操作简单且反应速度很快等优点.
英文摘要:
      Acetic acid,hexyl alcohol and concentrated sulfuric acid were used for preparation of hexyl acetate by ultra-sound at room temperature.Ultrasonic frequency,ultrasonic intensity,temperature and amount of catalysts were inves-tigated.The optimum conditions at 30℃ were obtained as follows: the frequency is 10 kHz,ultrasound intensity is 1.0 W/cm2,the amount of catalyst is 1.0%(v/v).The results show that ultrasound can enhance the esterification of reaction and the yield of esterification can reach more than 50%.This method has some advantages such asmild reactin condition,simple operation and high reaction rate.
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