Interfacial behavior of DEHEHP and the kinetics of cerium(IV) extraction in nitrate media

	Interfacial behavior of DEHEHP and the kinetics of cerium(IV) extraction in nitrate media
	Zhao JM ; Sun XB ; Li W ; Meng SL ; Li DQ
刊名	journal of colloid and interface science
	2006
卷号	294 期号:2 页码:429-435
关键词	LIQUID-LIQUID-EXTRACTION SURFACE TENSION NITRIC-ACID WATER ADSORPTION MECHANISM FILMS
ISSN号	0021-9797
通讯作者	li dq
中文摘要	the effects of diluents, temperature, acidity, and ionic strength of the aqueous phase on the interfacial properties of dehehp have been extensively investigated using the du nouy ring method. in addition, the effect of cerium(iv) concentration loaded in the organic phase on the interfacial tension has also been studied. with the increase of dehehp concentration, the value of interfacial tension (gamma) decreases in the studied system, which shows that dehehp has interfacial activity as a kind of surfactant. the surface excess at the saturated interface (gamma(max)) and the minimum bulk concentration of the extractant necessary to saturate the interface (c-min) under the different conditions are calculated according to two adsorption equations such as the gibbs and szyszkowski functions to be presented in comprehensive tables and figures. the relationship between the interfacial activity of dehehp and cerium(iv) extraction kinetics by dehehp has been discussed by considering different factors such as the effects of diluents and temperature. however, the interfacial activity parameter of extractant only is a qualitative parameter, but cannot provide strong enough evidence to quantitatively explain the relationship between extraction kinetics and interfacial properties of an extractant.
收录类别	SCI
语种	英语
WOS记录号	WOS:000233882900023
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/16399]
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	Zhao JM,Sun XB,Li W,et al. Interfacial behavior of DEHEHP and the kinetics of cerium(IV) extraction in nitrate media[J]. journal of colloid and interface science,2006,294(2):429-435.
APA	Zhao JM,Sun XB,Li W,Meng SL,&Li DQ.(2006).Interfacial behavior of DEHEHP and the kinetics of cerium(IV) extraction in nitrate media.journal of colloid and interface science,294(2),429-435.
MLA	Zhao JM,et al."Interfacial behavior of DEHEHP and the kinetics of cerium(IV) extraction in nitrate media".journal of colloid and interface science 294.2(2006):429-435.