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《Chinese Journal of Rare Metals》 2009-01
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Study on Stripping of Rare Earth from Organophosphorus Acid Mixture System

Zhang Yongqi,Huang Xiaowei*,Wang Chunmei,Long Zhiqi,Zhu Zhaowu,Zhang Guocheng(National Engineering Research Center for Rare Earth Materials,General Research Institute for Non-Ferrous Metals,and Grirem Advanced Materials Co.Ltd.,Beijing 100088,China)  
Stripping of Sm,Gd,Y from HDEHP and HEH/EHP mixture system were studied in detail.Accumulated stripping ratio in different acidity was also determined.The stripping ratio increased with increase of mole ratio of HEH/EHP in the mixture and decrease of atomic number.Compared with the same acidity of HCl,HNO3,H2SO4,the stripping order was HClHNO3H2SO4.Another mixture system of HDEHP and Cyanex272 was also investigated using HCl.The result showed that this system had more outstanding stripping effect.
【Fund】: 国家自然科学基金(50674016);; 国家863计划(2006AA06Z123)资助项目
【CateGory Index】: TF845.6
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