摘要
本文为液膜法提取稀土获得基础知识为目的,以D2EHPA(=2-乙基己基)磷酸)为载体用平膜提取稀土金属镧。测定了外水相的酸浓度、镧的浓度及载体浓度对平膜传质速度的影响,并利用传质速度方程式对实验结果给予定量解释。
The aim of this paper is to obtain the rudimentary knowledge about the extraction of rare earth by liquid membrane. The extraction of rare earth lanthanum using plane membrane with D2EHPA (di(2-ethyl hecyl)phosphonic acid) as carrier has been investigated. The effects of the pH of external water phase, the concentrations of lanthanum and carrier on the rate of mass transfer in plane membrane have been studied. Results of experiment have been quant-itatively explained with equations of the rate of mass transfer.
出处
《膜科学与技术》
CAS
CSCD
1993年第3期25-30,共6页
Membrane Science and Technology
基金
国家自然科学基金
关键词
镧
磷酸
液膜
传质
分离
plane membrane, lanthanum, di(2-ethyl hecyl) phosphonic acid
