聚4-甲基戊烯-1对有机液/水混合体系的渗透汽化分离  

Pervaporation separation of the organic solvent/water liquid mixtures through PMP membranes

作　　者：蒋晓钧[1] 曾一鸣[1] 陈观文[1] 

机构地区：[1]中国科学院化学研究所,北京100080

出　　处：《膜科学与技术》2001年第5期58-61,共4页Membrane Science and Technology

基　　金：国家自然科学基金重点资助项目 (5 983312 0 )

摘　　要：以结晶性聚合物聚 4 -甲基戊烯 - 1(PMP)为膜材质 ,制备了PMP均质膜 ,研究了其分子结构与其对二氯甲烷、三氯甲烷和 1,2 -二氯乙烯等氯代烃有机液 /水混合体系的渗透汽化 (PV )特性间的关系 ,并进行了理论解释 .In the search for a good membrane material, poly(4-m ethylpentene-1)(PMP)has been prepared. Its pervaporation characteristics in ext racting volatile organic solvents such as dichloromethane, chloroform and 1,2-di chloroethane from water have been investigated. The membrane showed good perform ance for separating 0.62% (mass fraction)chloroform/water liquid mixture at 50 ℃ and 100 Pa, the selectivity reaching a value of 656.7 while the flux was a bout 158.35 g/(m^2·h). The relationship between membrane properties and perme ation behavior was studied, and some theoretical interpretation of the results i s presented.

关 键 词：分离 聚4-甲基戊烯-1 有机液 水混合体系 渗透汽化 膜分离 

分 类 号：TQ028.8[化学工程] TQ051.893