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学科主题: 物理有机化学
题名: Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants
其他题名: 用酸性有机磷萃取剂萃取稀土中的线性自由能关系
作者: Xu QR(许庆仁)
刊名: J. Rare Earths
发表日期: 1999
卷: 17, 期:4, 页:241-245
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所元素有机化学研究室
英文摘要: The correlation relationships of apparent extraction equilibrium constant (lgKex) with the electronic effect parameter (∑ν )of the substituents in extractant molecules are investigated by linear regression analysis in the extraction of rare earths by various classes and structures of monoacidic organophosphorus extractants. The results indicate that in linear free energy relationship formula lgKex=ρ∑σφ+ψ∑ν +h generally follows for this kind of extraction systems. Accordingly, the quantitative structure-behaviour relationships of extractants are discussed. These relationships can be preliminarily applied to predict the lgKex values of rare earth extraction with definite structures of this class of extractants, and thus can provide some directions for the design of new RE extractants.
语种: 英语
WOS记录号: WOS:000084537600001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/27483
Appears in Collections:上海有机化学研究所_期刊论文

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Recommended Citation:
Xu QR. Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants[J]. J. Rare Earths,1999,17(4):241-245.
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