| Dean-Stark装置的改进 |
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| 引用本文： | 杨光.Dean-Stark装置的改进[J].实验室科学,2012,15(3):189-194. |
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| 作者姓名： | 杨光 |
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| 作者单位： | 天津市南化催化剂有限公司研究所,天津,300071 |
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| 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。
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| 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 |
Improvement of the Dean-Stark device |
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| YANG Guang.Improvement of the Dean-Stark device[J].Laboratory Science,2012,15(3):189-194. |
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| Authors: | YANG Guang |
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| Institution: | YANG Guang (Institute of Nanhua Catalyst Co. Ltd , Tianjin 300071, China) |
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| Abstract: | 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. |
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| Keywords: | improve ment of Dean-Stark device preparation of butyl ether preparation of n-butylacetate dehydration of p-toluenesulfonic acid solid acid for catalyzin~ |
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