一种新型的萃取过程——膜分散萃取  

A novel extraction process: membrane dispersion extraction

作　　者：孙永[1] 骆广生[1] 蒲煜[1] 戴猷元[1] 汪家鼎[1] 

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《清华大学学报（自然科学版）》2000年第10期40-42,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金项目!(2 9976 0 2 1)

摘　　要：为研究膜分散萃取的行为和效果 ,采用 30 % TBP-煤油作为分散相 ,去离子水作为连续相 ,SDS作为表面活性剂 ,硝酸为溶质 ,传质方向为从水相到有机相 ,以孔径为0 .2μm的 Al2 O3陶瓷膜为介质进行了研究。研究发现 ,膜分散萃取可以形成均一的液滴 ,萃取效果十分显著 ,级效率在95 %左右。The membrane dispersion extraction process was investigated using 30%TBP kerosene/water as the working medium with a 0.2μm microporous ceramic membrane, sodium dodecylsulfonate as the emulsifier, and nitric acid as the transferred solute. The mass transfer direction was from the aqueous phase to the organic phase. A monodispersion droplets system was obtained with the membrane dispersion process. The extraction efficiency was as high as 95%.

关 键 词：膜分离 萃取 陶瓷膜 

分 类 号：TQ051.83[化学工程] TQ028.32