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题名:
Insights into the Coordination and Extraction of Yttrium(III) Ions with a Phenoxyacetic Acid Ionic-Liquid Extractant
作者: Guo, XG; Yang, RO; Gong, Y; Jiang, Z; Dong, YM; Sun, XQ
刊名: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
出版日期: 2017
卷号: 2017, 期号:17, 页码:2332-2339
关键词: Rare earths ; Ionic liquids ; Extraction ; Saponification ; Density functional calculations
DOI: 10.1002/ejic.201601491
文章类型: 期刊论文
英文摘要: Phenoxyacetic acid type extractants such as sec-octylphenoxyacetic acid (CA-12), sec-nonylphenoxyacetic acid (CA-100), and the resulting bifunctional ionic-liquid extractants were developed to separate yttrium from heavy rare-earth elements (REEs). To obtain information on the coordination chemistry of this type of bifunctional ionic-liquid extractant, the CA-12 analogue n-octylphenoxyacetic acid (HOCTPOA) was synthesized, and its structure was characterized by single-crystal X-ray diffraction analysis. Then, a bifunctional ionic-liquid extractant based on HOCTPOA, namely, [N-1888][OCTPOA] (N-1888 is methyltrioctylammonium) was synthesized. The study of the extraction of yttrium with [N-1888][OCTPOA] in chloride media was conducted by IR spectroscopy, logD versus logC slope analysis, ESI-MS, extended X-ray absorption fine structure (EXAFS), and DFT studies. The EXAFS data indicate that a Y-III extraction complex with phenoxyacetic acid formed. Three possible Y-III coordination cations were calculated by the DFT method, and the obtained Y-O bond lengths were comparable to the results from EXAFS fitting. A possible structure for the overall extracted complex was proposed, and this knowledge should contribute to a better understanding of the extraction process with phenoxyacetate-type bifunctional ionic liquids.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000400991200005
ISSN号: 1434-1948
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27354
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Guo, XG,Yang, RO,Gong, Y,et al. Insights into the Coordination and Extraction of Yttrium(III) Ions with a Phenoxyacetic Acid Ionic-Liquid Extractant[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2017-01-01,2017(17):2332-2339.
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