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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。
In this paper, for the purpose of obtaining the basic knowledge of rare earth extraction by liquid membrane method, rare earth metal lanthanum was extracted with flat membrane using D2EHPA (= 2-ethylhexyl) phosphoric acid as carrier. The effects of external acid concentration, concentration of lanthanum and carrier concentration on the mass transfer rate were measured. The mass transfer rate equation was used to explain the experimental results.