不同共沸剂对洗油中β-甲基萘分离的影响

Effect of Different Azeotrope Formers on Separation of β-Alphamethylnaphthalene in Washing Oil

论述了洗油分离时,按1.4∶1比例加入不同的共沸剂(乙二醇、乙醇胺、二甘醇、庚烷-乙醇胺)进行分离提纯对提纯纯度及提纯效率的影响。研究发现:用乙二醇和乙醇胺作为共沸剂时效果比较好,用约24块塔板的精馏柱精馏时纯度可以达到84.8%,而且提纯物杂质的种类比较少;二甘醇和庚烷-乙醇胺作为共沸剂时,效果不好,产物纯度大约70%,且产物中杂质种类也比较多。

Tbe paper reported the effects of azeotrope formers on purity and efficiency when A, B, diethylene glycol, heptaneethanolamine were added into the washing oil at the ratio of 1.4：1. It was found that the result of A and B using as azeotrope former was better than that of diethylene glycol and heptane-ethanolamine. The purity reached about 84% and the categories of impurity was few. But the purity using diethylene glycol and heptane-ethanolamine was about 70% and the categories of impurity were more.