摘要
采用相平衡釜测定了醇类、酚类和有机羧酸类萃取剂对 3 甲基吡啶和 4 甲基吡啶相对挥发度的影响 ,探讨了以对甲基苯磺酸为萃取剂 ,萃取精馏分离 3 甲基吡啶和 4 甲基吡啶的可能性 ,研究了萃取剂用量和 3 甲基吡啶浓度对相对挥发度的影响 ,可以使相对挥发度从 1 0 2提高到 1 5以上 ,并且相对挥发度受 3
The effect of different extractants such as alcohols, phenol and carboxylic acids on the relative volatility( α AB ) of 3 picoline and 4 picoline was determined in a recircalating still. The possibility of 4 methylbenzenesulfonic acid ( p TSA) as a proper extractant was discussed in the extractive distillation of 3 picoline and 4 picoline. The extractant enhanced α AB from 1 02 to over 1 5. The effects of extractant amount the concentration of 3 picoline on α AB was also studied.
出处
《南京师范大学学报（工程技术版）》
CAS
2004年第2期11-13,共3页
Journal of Nanjing Normal University(Engineering and Technology Edition)
基金
国家"2 11"工程重点学科建设项目"不同时空尺度环境演变和生态建设项目"资助
关键词
3-甲基吡啶
4-甲基吡啶
萃取剂
对甲基苯磺酸
picoline, 4 picoline, extractive distillation, extractant, p-methylbenzenesulfonic acid
