摘要
对正丁醚的制备实验进行了改进：适当减少硫酸用量，改变正丁醇的加料方式，在反应温度较高时结束反应，可使正丁醚产率明显提高。还证明了用饱和氯化钙溶液洗涤粗产品时，除去正丁醇的效果很差，而用50％硫酸洗涤则效果较好。
The experiment of preparing di-n-butyl ether has been improved： the amount of sulfuric acid is cut down suitably, the way of adding n-butyl alcohol is changed, the temperature of reaction end is risen, and the yield of di-n-butyl ether is increased. Moreover, effect of remo- ving n-butyl alcohol from the crude product by saturated calcium chloride solution washing is poor, and better effect is obtained by 50% sulfuric acid washing.
出处
《化学教育》
CAS
北大核心
2014年第2期27-30,共4页
Chinese Journal of Chemical Education
关键词
正丁醚制备
正丁醇去除优化
饱和氯化钙溶液
50%硫酸
di-n-butyl ether preparation
optimization of n-butyl alcohol removing
saturatedcalcium chloride solution
50~ sulfuric acid
