溶碱萃取剂-丁酮-水体系汽液平衡数据测定及关联  

Determination and correlation of vapor-liquid equilibrium data for alkali extraction solvent-butanone-water system

作　　者：林军[1] 冯佳佳[1] 顾正桂[1] 

机构地区：[1]南京师范大学化学与环境科学学院,江苏南京210097

出　　处：《化学工程》2010年第5期63-66,共4页Chemical Engineering(China)

基　　金：江苏省自然科学基金支持项目(BK2009484);江苏省普通高校自然科学研究计划资助项目(07KJD530114)

摘　　要：提出了溶碱萃取精馏分离丁酮-水共沸体系的方法,采用自行设计的双循环汽液平衡釜,测定了全浓度下的溶碱萃取剂-丁酮-水三元体系常压汽液平衡数据,考察了溶碱萃取剂存在下,对丁酮-水体系汽液平衡的影响。采用LIQUAC模型与Wilson模型相结合的关联计算方法,进行了汽液平衡数据的关联,关联精度较高,在此基础上,进行了萃取精馏工艺条件的模拟。结果表明,与传统的溶盐萃取剂相比,溶碱萃取剂可以更好地提高萃取精馏法分离丁酮-水体系的效果。The method for extractive rectification with alkali for separating butanone-water azeotropic system was raised,and the vapor-liquid equilibrium data for alkali extraction solvent-butanone-water system with full concentration was determined by using a self-designed Gillespie still. The influence of alkali extraction solvent on the vapor-liquid equilibrium of butanone-water system was investigated. The correlation of vapor-liquid equilibrium data and the simulation of process parameters for extraction rectification were made by using correlative calculation method combining LIQUAC and Wilson models. The result shows that the separation of butanone-water system by extraction solvent with alkali is better than that by traditional extractive rectification of salt solvent.

关 键 词：丁酮 汽液平衡 萃取精馏 关联计算 

分 类 号：TQ013.1[化学工程]