Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52354#.VJJC8MnQrzE Author(s) Fuxiang Cheng 1 , Sheng Wu 1,2 , Yan Liu 1 , Songling Wang 1 , Bo Zhang 1 , Chunsheng Liao 1,2* , Chunhua Yan 2 Affiliation(s) 1 China Minmetals (Beijing) Research Institute of RE Co., Ltd., Beijing, China . 2 Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing, China . ABSTRACT A significant development in the theory of countercurrent extraction will be presented in this article. New expressions of the term in countercurrent ex...
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