相转移法从甲基萘馏分中分离精制吲哚的研究  

Study on Separating and Refining Indole from Methylnaphthalene Fractions by Phase Transfer Method

作　　者：刘彬[1] 鄂永胜[1] 安长伟[1] 王连海 李芳菲 LIU Bin;E Yongsheng;AN Changwei;WANG Lianhai;LI Fangfei(School of Biomedical and Chemical Engineering,Liaoning Institute of Science and Technology,Benxi Liaoning 117004,China;Liaoning Beifang Coal-Chemical(Group)Co.,Ltd.,Benxi Liaoning 117004,China)

机构地区：[1]辽宁科技学院生物医药与化学工程学院,辽宁本溪117004 [2]辽宁北方煤化工(集团)股份有限公司,辽宁本溪117000

出　　处：《辽宁化工》2024年第12期1837-1840,共4页Liaoning Chemical Industry

基　　金：辽宁省教育厅面上项目(项目编号:LJKMZ20221679)。

摘　　要：采用硫酸洗涤法从甲基萘馏分中分离吲哚,检测了不同质量分数的硫酸对喹啉、吲哚提取率和收率的影响以及加入相转移催化剂聚乙二醇后对吲哚提取率和收率的影响,得到最佳的分离条件。根据检测结果设计相转移法从甲基萘馏分中分离精制吲哚的操作流程并得到粗吲哚,对粗吲哚精馏精制,得到纯度大于98%的吲哚产品。Indole was separated from methylnaphthalene fractions by sulfuric acid washing method.The effects of different mass fractions of sulfuric acid on the extraction rate and yield of quinoline and indole were investigated.The effect of sulfuric acid mass fraction on the extraction rate and yield of indole after the addition of phase transfer catalyst polyethylene glycol was investigated.The optimum separation conditions were obtained.According to the detection results,the operation process of separating and refining indole from methylnaphthalene fractions by phase transfer method was designed,and crude indole was refined by distillation to obtain indole products with purity greater than 98%.

关 键 词：甲基萘馏分 吲哚 相转移催化剂 分离 精制 

分 类 号：TQ522[化学工程—煤化学工程]