A new solvent system containing N,N '-diethyl-N,N '-ditolyl-2,9-diamide-1,10-phenanthroline in 1-(trifluoromethyl)-3-nitrobenzene for highly selective UO22+ extraction
文献类型：期刊论文
| 作者 | Chai ZF(柴之芳) ; Yuan LY(袁立永); Zhang XR(张昕蕊); Zhang, XR; Shi, WQ; Chai, ZF; Yuan, LY; Shi WQ(石伟群)
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| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
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| 出版日期 | 2016 |
| 卷号 | 168页码:232 |
| 关键词 | N,N '-diethyl-N,N '-ditolyl-2,9-diamide-1,10-phenanthroline Uranyl Extraction GANEX process |
| DOI | 10.1016/j.seppur.2016.05.056 |
| 通讯作者 | 袁立永 |
| 英文摘要 | A novel tetradentate ligand combining hard O-donor and soft N-donors in the same molecule, N,N'-diethyl-N,N'-ditolyl-2,9-diamide-1,10-phenanthroline (Et-Tol-DAPhen), was developed in our laboratory aiming at the group separation of actinides from lanthanides. Herein, the solvent extraction of UO22+ by Et-Tol-DAPhen in 1-(trifluoromethyl)-3-nitrobenzene diluent was investigated in detail. The effects of contact time, Et-Tol-DAPhen concentration, acidity, and competing ions on the extraction were discussed, the extracted UO22+ speciation was analysed, and the stripping of UO22+ from organic phase was performed. The results clearly show that Et-Tol-DAPhen/1-(trifluoromethyl)-3-nitrobenzene provides a highly efficient extraction of UO22+ from HNO3 media with a fast extraction kinetics of less than 5 min and a large distribution ratio of more than 300. Moreover, the system shows excellent selectivity toward UO22+ over Ln(3+) in a wide acidity range. Stripping experiments indicate that almost a complete back extraction of tie could be achieved via only one stage operation using 5% Na2CO3 solution. Findings of the present work provide new data for assessing the feasibility of Et-Tol-DAPhen, as well as other new ligand with hard-soft donors combined in the same molecule, applied in the group separation of actinides over lanthanides. (C) 2016 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000378951800028 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/261060]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Chai ZF,Yuan LY,Zhang XR,et al. A new solvent system containing N,N '-diethyl-N,N '-ditolyl-2,9-diamide-1,10-phenanthroline in 1-(trifluoromethyl)-3-nitrobenzene for highly selective UO22+ extraction[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2016,168:232. |
| APA | 柴之芳.,袁立永.,张昕蕊.,Zhang, XR.,Shi, WQ.,...&石伟群.(2016).A new solvent system containing N,N '-diethyl-N,N '-ditolyl-2,9-diamide-1,10-phenanthroline in 1-(trifluoromethyl)-3-nitrobenzene for highly selective UO22+ extraction.SEPARATION AND PURIFICATION TECHNOLOGY,168,232. |
| MLA | 柴之芳,et al."A new solvent system containing N,N '-diethyl-N,N '-ditolyl-2,9-diamide-1,10-phenanthroline in 1-(trifluoromethyl)-3-nitrobenzene for highly selective UO22+ extraction".SEPARATION AND PURIFICATION TECHNOLOGY 168(2016):232. |
入库方式： OAI收割
来源：高能物理研究所
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