Efficient selective separation of yttrium from holmium and erbium using carboxyl functionalized ionic liquids
文献类型：期刊论文
| 作者 | Hu, Kaibo1,3; Gao, Hongshuai2,3; Nie, Yi2,3; Dong, Haifeng2,3; Yan, Junjun1,3; Zhang, Xiangping2,3; Li, Fujian3 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2021-08-15 |
| 卷号 | 269页码:7 |
| ISSN号 | 1383-5866 |
| 关键词 | Carboxylic acid functionalized ionic liquids Solvent extraction Yttrium Selective separation |
| DOI | 10.1016/j.seppur.2021.118774 |
| 英文摘要 | The efficient extraction separation of yttrium (Y) from holmium (Ho) and erbium (Er) is always difficult because of their similar physical and chemical properties. In this work, three pyridine carboxylic acid ionic liquids were synthesized and used to extraction of Y. The effects of aqueous phase acidity, extraction time, extractant concentration, temperature and alkyl chain length of ionic liquids on extraction of Y were investigated systematically. The extraction efficiency of [(CH2)(7)COOHpyr][NTf2] for Y increased with an increase in pH, and could reach 99.3% at a pH of 2.5. Meanwhile, the extraction process could achieve equilibrium completely within 5 min. In addition, both the separation coefficients of Ho/Y and Er/Y were greater than 2, which were higher than other ionic liquid extractants. At last, 98.5% of Y could be stripped from the loaded ionic liquid phase with a single step using 0.04 mol/L HCl, and the extraction efficiency of the [(CH2)(7)COOHpyr][NTf2] for Y still maintained about 98% after 8 cycles. A possible cation exchange extraction mechanism was proposed by slope analysis and FTIR spectroscopy. |
| WOS关键词 | RARE-EARTH-ELEMENTS ; SOLVENT-EXTRACTION ; SYNERGISTIC EXTRACTION ; STRATEGY ; METALS ; ACIDS |
| 资助项目 | National Natural Science Foundation of China[22078323] ; National Natural Science Foundation of China[22008244] ; Innovation Academy for Green Manufacture[IAGM2020DB03] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000652641400003 |
| 资助机构 | National Natural Science Foundation of China ; Innovation Academy for Green Manufacture |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/48826]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Gao, Hongshuai; Li, Fujian |
| 作者单位 | 1.Zhengzhou Univ, Coll Chem & Engn, Zhengzhou 450001, Peoples R China 2.Univ Chinese Acad Sci, Coll Chem & Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Kaibo,Gao, Hongshuai,Nie, Yi,et al. Efficient selective separation of yttrium from holmium and erbium using carboxyl functionalized ionic liquids[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,269:7. |
| APA | Hu, Kaibo.,Gao, Hongshuai.,Nie, Yi.,Dong, Haifeng.,Yan, Junjun.,...&Li, Fujian.(2021).Efficient selective separation of yttrium from holmium and erbium using carboxyl functionalized ionic liquids.SEPARATION AND PURIFICATION TECHNOLOGY,269,7. |
| MLA | Hu, Kaibo,et al."Efficient selective separation of yttrium from holmium and erbium using carboxyl functionalized ionic liquids".SEPARATION AND PURIFICATION TECHNOLOGY 269(2021):7. |
入库方式： OAI收割
来源：过程工程研究所
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