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Citation: Liang Pei, Li Ming Wang, Wei Guo. Stripping dispersion hollow fiber liquid membrane containing carrier PC-88A and HNO₃ for the extraction of Sm³⁺[J]. Chinese Chemical Letters, ;2012, 23(1): 101-104. doi: 10.1016/j.cclet.2011.09.013 shu

Stripping dispersion hollow fiber liquid membrane containing carrier PC-88A and HNO₃ for the extraction of Sm³⁺

Liang Pei ^a,c, ,
Li Ming Wang ^b,c ,
Wei Guo ^b

a Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
b School of Environment and Chemistry Engineering, Xi'an Polytechnic University, Xi'an 710048, China;
c Faculty of Water Resources and Hydraulic Power, Xi'an University of Technology, Xi'an 710048, China

Received Date: 24 June 2011

Fund Project: This work is financially supported by the National Natural Science Foundation of China for Young Scientists (Nos. 51109197 and 51009126), the Action Plan for the Development of Western China of the Chinese Academy of Sciences (No. KZCX2-XB2-13), the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KSCX2-YWN-003), and Research Fund for Excellent Doctoral Thesis of Xi'an University of Technology (Nos. 602-210805 and 602-210804).

Stripping dispersion hollow fiber liquid membrane system (SDHFLM) containing feed phase adding acetate buffer solution and dispersion solution with HNO₃ solution as the stripping solution and membrane solution of 2-ethyl hexyl phosphoric acid-mono-2-ethylhexyl ester (PC-88A) dissolved in kerosene, has been studied for the extraction of Sm³⁺. Many factors including pH value, volume ratio of membrane solution to stripping solution (O/W) and carrier concentration on Sm³⁺ extraction were investigated. Experimental results indicate that the optimum extraction conditions of Sm³⁺ were obtained as that PC-88A concentration was 0.120 mol/L, and O/W was 1.00 in the dispersion phase, and pH value was 4.80 in the feed phase. When initial Sm³⁺ concentration was 1.20×10^-4 mol/L, the extraction percentage of Sm³⁺ was up to 92.8% in 160 min.
- Stripping dispersion hollow fiber liquid membrane,
- 2-Ethyl hexyl phosphoric acid-mono-2-ethyl hexyl ester,
- Samarium,
- Dispersion phase,
- Extraction flux,
- Extraction rate
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