【摘 要】
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Stripping dispersion hollow fiber liquid membrane system (SDHFLM) containing feed phase adding acetate buffer solution and dispersion solution with HNO3 solutio
【机 构】
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Key Laboratory of Water Cycle and Related Land Surface Processes,Faculty of Water Resources and Hydr
论文部分内容阅读
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.
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