Extraction of metal ions with non-fluorous bipyridine derivatives as chelating ligands in supercritical carbon dioxide
文献类型：期刊论文
| 作者 | Wang, Wei1,2; Yang, Hai-Jian1,2; Hua, Juncheng1,2; Guo, Cun-Yue3 |
| 刊名 | JOURNAL OF SUPERCRITICAL FLUIDS
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 51期号:2页码:181-187 |
| 关键词 | Supercritical Co(2) Non-fluorous Bipyridine Derivatives Solubility Semiempirical Model Metal Ions Extraction Extraction Constant |
| ISSN号 | 0896-8446 |
| DOI | 10.1016/j.supflu.2009.07.010 |
| 英文摘要 | Three new non-fluorous bipyridine derivatives, bis(2-(2-butoxyethoxy)ethyl)-2,2'-bipyridine-4,4'-dicarboxylate (ligand 1), bis(2-(2-ethoxyethoxy)ethyl)-2,2'-bipyridine-4,4'-dicarboxylate (ligand 2), and bis(2-butoxyethyl)-2,2'-bipyridine-4,4'-dicarboxylate (ligand 3), were synthesized as chelating ligands to remove metal ions from solid matrix into supercritical CO(2) (scCO(2)). These produced compounds 1-3 showed considerable solubilities in scCO(2) (8.0 g/l, 4.8 g/l, 7.8 g/l for ligands 1-3 at 313 K, respectively) and the tested solubility data were then calculated and correlated with semiempirical model at different pressures and temperatures, which showed satisfactory agreement with each other and the average absolute relative deviation were in the range of 0.1-28.3%. The effects of pressure, temperature, time, and ligand to metal ratio (5:1 to 75:1) on the extraction efficiency of metal ions were also systematically investigated. The extraction efficiency was 100% for Ni(2+) and 95.9% for Cu(2+) in scCO(2) with the system of ligand 1, ultrapure water, and perfluoro-1-octanesulfonic acid tetraethylammonium salt (PFOAT) under the optimized conditions (25 MPa, 313 K, 90 min, and ligand to metal ratio of 10). Although all ligands exhibited good efficiency for Ni(2+) (>85%) and Cu(2+) (>70%) extraction, the extraction of mixed metal ions indicated that the bipyridine derivatives had low selectivity. Finally, the detailed calculation results exhibited that the extraction constants (K(ex)) of the metal ions increased with the increase of the extraction efficiency in the same extraction system for each same metal ion. (C) 2009 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000274350800013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67603]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Hai-Jian |
| 作者单位 | 1.S Cent Univ Nationalities, Key Lab Analyt Chem State Ethn Affairs Comm, Key Lab Catalysis & Mat Sci State Ethn Affairs Co, Wuhan 430074, Peoples R China 2.S Cent Univ Nationalities, Minist Educ, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Chem, New Mat Lab, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Wei,Yang, Hai-Jian,Hua, Juncheng,et al. Extraction of metal ions with non-fluorous bipyridine derivatives as chelating ligands in supercritical carbon dioxide[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2009,51(2):181-187. |
| APA | Wang, Wei,Yang, Hai-Jian,Hua, Juncheng,&Guo, Cun-Yue.(2009).Extraction of metal ions with non-fluorous bipyridine derivatives as chelating ligands in supercritical carbon dioxide.JOURNAL OF SUPERCRITICAL FLUIDS,51(2),181-187. |
| MLA | Wang, Wei,et al."Extraction of metal ions with non-fluorous bipyridine derivatives as chelating ligands in supercritical carbon dioxide".JOURNAL OF SUPERCRITICAL FLUIDS 51.2(2009):181-187. |
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来源：化学研究所
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