Synergistic extraction and separation study of rare earth elements from nitrate medium by mixtures of sec-nonylphenoxy acetic acid and 2,2 '-bipyridyl
文献类型：期刊论文
| 作者 | Fan SJ ; Tian MM ; Song NZ ; Jia QO ; Liao WP |
| 刊名 | journal of chemical technology and biotechnology
 |
| 出版日期 | 2011 |
| 卷号 | 86期号:5页码:719-723 |
| 关键词 | BIS(2 4 N-DONOR LIGANDS 4-TRIMETHYLPENTYL) DITHIOPHOSPHINIC ACID SOLVENT-EXTRACTION OCTYLPHENOXYACETIC ACID CHLORIDE MEDIUM TRIISOBUTYLPHOSPHINE SULFIDE 1-PHENYL-3-METHYL-4-BENZOYL-PYRAZALONE-5 LANTHANUM(III) EARTHS(III) COMBINATION |
| ISSN号 | 0268-2575 |
| 通讯作者 | jia qo |
| 中文摘要 | background: synergistic extraction has been proven to enhance extractability and selectivity. numerous types of synergistic extraction systems have been applied to rare earth elements, among which sec-nonylphenoxyacetic acid (ca100) has proved to be an excellent synergistic extractant. in this study, the synergistic enhancement of the extraction of holmium(iii) from nitrate medium by mixtures of ca100 (h(2)a(2)) with 2,2'-bipyridyl (bipy, b) in n-heptane has been investigated. the extraction of all other lanthanides (except polonium) and yttrium by the mixtures in n-heptane has also been studied. results: mixtures of ca100 and bipy have significant synergistic effects on all rare earth elements, for example holmium(iii) is extracted as ho(no(3))(2)ha(2)b with the mixture instead of hoh(2)a(5), which is extracted by ca100 alone. the thermodynamic functions, delta h degrees, delta g degrees, and delta s degrees have been calculated as 2.96 kj mol(-1), -6.23 kj mol(-1), and 31.34 jmol(-1) k(-1), respectively. conclusion: methods of slope analysis and constant molar ratio have been successfully applied to study the synergistic extraction stoichiometries of holmium(iii) by mixtures of ca100 and bipy. mixtures of these extractants have also shown various synergistic effects with other rare earth elements, making it possible to separate them. thus ca100 + bipy may be used to separate yttrium from other lanthanides at appropriate ratios of the extractants. (c) 2011 society of chemical industry |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000289363600014 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44652]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Fan SJ,Tian MM,Song NZ,et al. Synergistic extraction and separation study of rare earth elements from nitrate medium by mixtures of sec-nonylphenoxy acetic acid and 2,2 '-bipyridyl[J]. journal of chemical technology and biotechnology,2011,86(5):719-723. |
| APA | Fan SJ,Tian MM,Song NZ,Jia QO,&Liao WP.(2011).Synergistic extraction and separation study of rare earth elements from nitrate medium by mixtures of sec-nonylphenoxy acetic acid and 2,2 '-bipyridyl.journal of chemical technology and biotechnology,86(5),719-723. |
| MLA | Fan SJ,et al."Synergistic extraction and separation study of rare earth elements from nitrate medium by mixtures of sec-nonylphenoxy acetic acid and 2,2 '-bipyridyl".journal of chemical technology and biotechnology 86.5(2011):719-723. |
入库方式： OAI收割
来源：长春应用化学研究所
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