摘要
在分水器溢流管出口处加一玻璃或PTFE隔板,以防止滴落之液体短路造成效率下降。实验结果表明:在使用新方法后,制备醋酸正丁酯在出水4mL(理论4.5mL)时,时间减少1/3,对正丁醚制备及甲苯磺酸单水合物除水也有明显效果。
Set a separation card glass or PTFE at the exitus of the Dean-Stark device＇s overflow pipe, so that it can prevent the liquid returned to the contain in short cut, and prevent the separator becom- ing ineffective. The new way can make the time of producing 4mL water （ theoretical value is 4. 5mL） in the n-butyl aeetate＇s preparation decreasing 1/3. And it also has positive effect to the preparation of the Butyl ether and the dehydration of the p-toluenesulfonic acid.
出处
《实验室科学》
2012年第3期189-194,共6页
Laboratory Science
关键词
分水器增效
正丁醚制备
醋酸正丁酯制备
对甲苯磺酸一水合物除水
固体酸催化
improve ment of Dean-Stark device
preparation of butyl ether
preparation of n-butylacetate
dehydration of p-toluenesulfonic acid
solid acid for catalyzin~
