U(vi) extraction by 8-hydroxyquinoline: a comparison study in ionic liquid and in dichloromethane
文献类型：期刊论文
| 作者 | Yuan, Li-Yong1; Liao, Xiang-Hong1,2; Liu, Zhi-Rong2; Chai, Zhi-Fang1,3,4; Shi, Wei-Qun1 |
| 刊名 | Radiochimica acta
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 105期号:6页码:441-448 |
| 关键词 | U(vi) 8-hydroxyquinoline Ionic liquids Extraction |
| ISSN号 | 0033-8230 |
| DOI | 10.1515/ract-2016-2664 |
| 通讯作者 | Shi, wei-qun(shiwq@ihep.ac.cn) |
| 英文摘要 | Room temperature ionic liquids (rtils) represent a recent new class of solvents with potential application in liquid/liquid extraction based nuclear fuel reprocessing due to their unique physical and chemical properties. the work herein provides a comparison of u(vi) extraction by 8-hydroxyquinoline (hox) in a commonly used rtil, i.e. 1-butyl-3-methylimidazolium hexafluorophosphate ([c(4)mim][pf6]) and in conventional solvent, i.e. dichloromethane (ch2cl2). the effect of hox concentration, solution acidity and nitrate ions on the extraction were discussed in detail, and the speciation analyses of the extracted u(vi) were performed. one of the main emphasis of this work is the extraction mechanism of u(vi) extracted from aqueous phase into rtils and conventional solvent. in ch2cl2, the extraction occurs through a combination of ion change and neutral complexation, and the extracted complex is proposed as uo2(ox)(2)hox. in [c(4)mim][pf6], although a cation-change mechanism as previously reported for rtils-based system was involved, the extracted complex of uo2 (ox)(1.5)(hox) (1.5) (pf6)(0.5) gave a clear indication that the usage of hox as an acidic extractant markedly inhibited the solubility loss of [c(4)mim][pf6] during the extraction by leaching h+ to aqueous phase. moreover, the extracted u(vi) in [c(4)mim][pf6] can be easily stripped by using 0.01 m nitric acid, which provides a simple way of the ionic liquid recycling. |
| WOS关键词 | NITRIC-ACID MEDIUM ; URANYL-ION ; BETAINIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE ; SOLVENT-EXTRACTION ; URANIUM ; COORDINATION ; MALONAMIDE ; CHEMISTRY ; RECOVERY ; TOPO |
| WOS研究方向 | Chemistry ; Nuclear Science & Technology |
| WOS类目 | Chemistry, Inorganic & Nuclear ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000402382000002 |
| 出版者 | WALTER DE GRUYTER GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177377 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Shi, Wei-Qun |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China 2.East China Inst Technol, Sch Nucl Engn & Geophys, Nanchang 330013, Jiangxi, Peoples R China 3.Soochow Univ, Sch Radiol & Interdisciplinary Sci, Suzhou 215123, Peoples R China 4.Soochow Univ, Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Li-Yong,Liao, Xiang-Hong,Liu, Zhi-Rong,et al. U(vi) extraction by 8-hydroxyquinoline: a comparison study in ionic liquid and in dichloromethane[J]. Radiochimica acta,2017,105(6):441-448. |
| APA | Yuan, Li-Yong,Liao, Xiang-Hong,Liu, Zhi-Rong,Chai, Zhi-Fang,&Shi, Wei-Qun.(2017).U(vi) extraction by 8-hydroxyquinoline: a comparison study in ionic liquid and in dichloromethane.Radiochimica acta,105(6),441-448. |
| MLA | Yuan, Li-Yong,et al."U(vi) extraction by 8-hydroxyquinoline: a comparison study in ionic liquid and in dichloromethane".Radiochimica acta 105.6(2017):441-448. |
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来源：高能物理研究所
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