Solvent extraction of americium(III) and europium(III) with 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl) pyridine in ionic liquids: Experimental study and molecular dynamics simulation
文献类型：期刊论文
| 作者 | Tan, Cunmin1,3,4; Zhang, Xin4 ; Cao, Shiwei1,3; Li, Sa1,3,4; Guo, Hangxu1,3; Tian, Yuan3; Chen, Desheng1,3; Tian, Wei1,3; Wang, Lei2; Qin, Zhi3
|
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2018-02-09 |
| 卷号 | 192页码:302-308 |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2017.09.033 |
| 英文摘要 | The extraction behaviors of Eu(III) and Am(III) from nitric acid medium by 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl) pyridine (C2-BTP) dissolved in four different room temperature ionic liquids (RTILs), viz. C(2)mim(+) (NTf2-)-N-center dot C(4)mim(+) (NTf2-)-N-center dot, C(6)mim(+) (NTf2-)-N-center dot, C(8)mim(+) (NTf2-)-N-center dot, were investigated under different conditions. The distribution ratios of Am(III) and Eu(III) in C2-BTP/C(n)mim(+) (NTf2-)-N-center dot (n = 2, 4, 6, 8) were measured as a functions of the extraction time and the concentration of nitric acid. It is found that the systems exhibit slow kinetics in extraction, and the distribution ratios for Am(III) and Eu(III) decrease with higher nitric acid concentration. The extraction mechanism is found to be cation-exchange in RTILs, which is different compared to that in molecular diluents. Though higher temperature leads to faster kinetics in the experiment, the equilibrium time still remain over 24 h. However, the distribution ratios for Am(III) are significantly enhanced at higher temperature. From the computational practice, an encouraging conclusion is that the predominant conformer of C2-BTP is greatly changed in RTILs compared with those in gas phase and molecular diluents. It is this transformation that leads to the discrepancy of the extraction behaviors with C2-BTP in molecular diluents or RTILs, and the intermolecular interactions should be well tuned to design a delighting extracting system. |
| WOS关键词 | SELECTIVE EXTRACTION ; WAVE-FUNCTION ; COMPLEXATION ; LIGANDS ; SYSTEM ; DIGLYCOLAMIDE ; LANTHANIDES ; VALIDATION ; ACTINIDE ; BEHAVIOR |
| 资助项目 | National Natural Science Foundation of China[11079006] ; CAS Strategic Priority Research Program[XDA03010402] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000418212500035 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; CAS Strategic Priority Research Program |
| 源URL | [http://119.78.100.186/handle/113462/47079]  |
| 专题 | 近代物理研究所_实验物理中心 |
| 通讯作者 | Qin, Zhi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Sichuan Univ, Coll Chem, Chengdu 610065, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 4.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Cunmin,Zhang, Xin,Cao, Shiwei,et al. Solvent extraction of americium(III) and europium(III) with 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl) pyridine in ionic liquids: Experimental study and molecular dynamics simulation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2018,192:302-308. |
| APA | Tan, Cunmin.,Zhang, Xin.,Cao, Shiwei.,Li, Sa.,Guo, Hangxu.,...&Qin, Zhi.(2018).Solvent extraction of americium(III) and europium(III) with 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl) pyridine in ionic liquids: Experimental study and molecular dynamics simulation.SEPARATION AND PURIFICATION TECHNOLOGY,192,302-308. |
| MLA | Tan, Cunmin,et al."Solvent extraction of americium(III) and europium(III) with 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl) pyridine in ionic liquids: Experimental study and molecular dynamics simulation".SEPARATION AND PURIFICATION TECHNOLOGY 192(2018):302-308. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。