Tb(III) Transport in Dispersion Supported Liquid Membrane System with D2EHPA as Carrier in Kerosene
文献类型：SCI/SSCI论文
| 作者 | Pei L. A. ; Yao B. H. ; Wang L. M. ; Ma Z. Y. |
| 发表日期 | 2011 |
| 关键词 | Dispersion supported liquid membrane Di(2-ethylhexyl) phosphoric acid Terbium(III) Dispersion phase Transport flux Transport percentage metal-ion separation solvent-extraction strip dispersion waste-water nickel ions removal contactors stability phosphate recovery |
| 英文摘要 | The transport of Tb(III) in dispersion supported liquid membrane(DSLM) with polyvinylidene fluoride membrane(PVDF) as the support and dispersion solution including HCl solution as the stripping solution and di(2-ethylhexyl) phosphoric acid(D2EHPA) dissolved in kerosene as the membrane solution, has been studied. The effects of pH value, initial concentration of now and different ionic strength in the feed phase, volume ratio of membrane solution to stripping solution, concentration of HCl solution, concentration of carrier, different stripping agents in the dispersion phase on the transport of Tb(III) have also been investigated, respectively. As a result, the optimum transport conditions of Tb(III) were obtained, i.e., the concentration of HCl solution was 4.0 mol/L, the concentration of D2EHPA was 0.16 mol/L, the volume ratio of membrane solution to stripping solution was 30:30 in the dispersion phase and pH value was 4.5 in the feed phase. Ionic strength had no obvious effect on the transport of Tb(III). Under the optimum conditions, the transport percentage of Tb(III) was up to 96.1% in a transport time of 35 min when the initial concentration of Tb(III) was 1.0x10(-4) mol/L. The diffusion coefficient of Tb(III) in the membrane and the thickness of diffusion layer between feed phase and membrane phase were obtained and the values were 1.82x10(-8) m(2)/s and 5.61 mu m, respectively. The calculated results were in good agreement with the literature data. |
| 出处 | Chemical Research in Chinese Universities |
| 卷 | 27 |
| 期 | 1 |
| 页 | 132-139 |
| 收录类别 | SCI |
| ISSN号 | 1005-9040 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23228]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Pei L. A.,Yao B. H.,Wang L. M.,et al. Tb(III) Transport in Dispersion Supported Liquid Membrane System with D2EHPA as Carrier in Kerosene. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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