Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants

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	Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants
	Xu QR(许庆仁)
刊名	J. Rare Earths
	1999
卷号	17 期号:4 页码:241-245
ISSN号	1002-0721
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
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.
学科主题	物理有机化学
收录类别	SCI
语种	英语
WOS记录号	WOS:000084537600001
公开日期	2013-08-14
内容类型	期刊论文
源URL	[http://202.127.28.38/handle/331003/27483]
专题	上海有机化学研究所_上海有机化学研究所
推荐引用方式 GB/T 7714	Xu QR. Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants[J]. J. Rare Earths,1999,17(4):241-245.
APA	许庆仁.(1999).Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants.J. Rare Earths,17(4),241-245.
MLA	许庆仁."Linear free energy relationships in extraction of rare earths by acidic organophosphorus extractants".J. Rare Earths 17.4(1999):241-245.