摘要
本文以液膜法提取稀土获得基础知识为目的,以二(2-乙基己基)磷酸(D2EHPA)为载体,用中空纤维丝液膜提取稀土金属镧。测定了流量随时间的变化以及外水相的酸浓度、镧浓度、载体浓度对膜传质速度的影响,并利用传质速度方程式对实验结果给予定量解释。
The aim of the paper is to obtain the rudimentary knowledge about the extraction of rare earth by liquid membrane. The extraction of rare earth lanthanum using hollow-fiber membrane with di(2 -ethyl hexyl) phosphoric acid(D2EHPA)as carrier has been investigated. The effects of variation of the flux with time ,pH of external water phase, concentration of lanthanum and carrier on the rate of mass transfer in membrane have been studied. The results of experiment have been quantitatirely explained with equation of the rate of mass transfer.
出处
《膜科学与技术》
CAS
CSCD
1994年第4期34-40,共7页
Membrane Science and Technology
基金
国家自然科学基金
关键词
中空纤维丝
液膜
镧
膜分离
Hollow-Fiber Liquid Membrane,Lanthanum, di(2 -ethyl hexyl) Phosphoric Acid.
