Selective extraction of vanadium from chromium by pure [C(8)mim][PF6]: An anion exchange process
文献类型：期刊论文
| 作者 | Hu, Qiaoyu1,2; Zhao, Junmei1; Wang, Fuchun1,2; Huo, Fang1; Liu, Huizhou1 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2014-06-27 |
| 卷号 | 131期号:JUN页码:94-101 |
| 关键词 | [C(8)mim][PF6] Vanadium(V) Chromium(IV) Extraction |
| ISSN号 | 1383-5866 |
| 通讯作者 | Zhao, JM (reprint author), Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, 1 Bei Er Tiao, Beijing 100190, Peoples R China. |
| 英文摘要 | Separations among vanadium(V) and chromium(VI) remain challenging. The extraction behaviors of V(V) along with Cr(VI) by a few of pure imidazolium-based hydrophobic ionic liquids have been investigated. Among these hydrophobic ionic liquids, [C(8)mim][PF6] exhibits a special extraction for V(V) while a weak extraction for Cr(VI). The extraction behavior of V(V) by [C(8)mim][PF6] was particularly studied. The extraction of V(V) is strongly dependent on the acidity of the aqueous phase, and the maximum separation factor between V and Cr (beta(V/Cr)) was calculated to be 100.6 in case of pH 3.5. The most probable extraction mechanism of V(V) has been proposed to be the anion exchange between the main species HV10O273- and PF6-. Furthermore, V(V) in IL phase can be quantitatively stripped by KPF6 solution under the basic condition (C-OH(-) = 1 mol/l). Recycle test indicates that the extraction capacity shows no apparent decline until the 9th continuous extraction-stripping cycle. The result also provides a new approach for the preparation of a novel ionic liquid with metal oxo-anions as counter anion. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 学科主题 | Engineering |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TEMPERATURE IONIC LIQUIDS ; SOLVENT-EXTRACTION ; IMIDAZOLIUM ; SEPARATION ; METALS ; MEDIA ; GREEN ; WATER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000338408800012 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/15249]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Qiaoyu,Zhao, Junmei,Wang, Fuchun,et al. Selective extraction of vanadium from chromium by pure [C(8)mim][PF6]: An anion exchange process[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2014,131(JUN):94-101. |
| APA | Hu, Qiaoyu,Zhao, Junmei,Wang, Fuchun,Huo, Fang,&Liu, Huizhou.(2014).Selective extraction of vanadium from chromium by pure [C(8)mim][PF6]: An anion exchange process.SEPARATION AND PURIFICATION TECHNOLOGY,131(JUN),94-101. |
| MLA | Hu, Qiaoyu,et al."Selective extraction of vanadium from chromium by pure [C(8)mim][PF6]: An anion exchange process".SEPARATION AND PURIFICATION TECHNOLOGY 131.JUN(2014):94-101. |
入库方式： OAI收割
来源：过程工程研究所
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