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用液膜技术分离铌和钽 被引量:2

Separation of Niobium and Tantalum by Liquid Surfactant Membranes
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摘要 由煤油——仲辛醇——上胺体系组成的液膜技术分离铌(V)和钽(V),只要控制一定的料液相条件,就能快速,有效地分离。经一次处理能使含500ppm 的Ta_2 O_5几乎完全被萃取,而相同浓度的Nb_2 O_5其萃取率低于5%。 One method has been developed to separate niobium (V) and tan-talum (V) by means of liquid surfaetant membranes containing sec-oc-tyl alcohol as carrier mediation.The emulsion membrane systems con-sisting of kerosene,sec-octyl alcohol and shangan (N 205) can rapidlyand effectively separate Nb (V) and Ta (V ) mixtures,only if the con-ditions of sources phase has been well controlled.We can find thatTa (V),for the 500 ppm Ta_2O_5 in the sources phase,can almost beextracted,while the extraction rate of Nb (V) for the same concentra-tion is less than 5 percent.
出处 《膜科学与技术》 CAS CSCD 1989年第4期39-43,共5页 Membrane Science and Technology
关键词 分离 液膜法
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  • 1F. Macá?ek,P. Rajec,V. ?ehá?ek,Vu Ngoc Anh,T. Popovňáková. Emulsion membrane systems for preconcentration of uranium[J] 1985,Journal of Radioanalytical and Nuclear Chemistry Letters(5):529~537

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