Effect of diluents on the extraction of praseodymium and samarium by Cyanex 923 from acidic nitrate medium

The solvent extraction of Pr(Ⅲ) and Sm(Ⅲ) with trialkyl phosphine oxide(Cyanex 923) in chloroform,carbon tetrachloride,n-octane,cyclohexane,1,2-dichloroethane,benzene,toluene,xylene and nitrobenzene from acidic nitrate medium was investigated.On the basis of slope analysis data,the composition of th...

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Bibliographic Details
Published in:Journal of rare earths 2010-04, Vol.28 (2), p.215-220
Main Author: YA El-Nadi
Format: Article
Language:English
Subjects:
Chemical equilibrium
Correlation
Cyanex 923
diluents
extraction
Nitrates
Nitrobenzenes
Phosphine oxide
praseodymium
Rare earth metals
rare earths
samarium
Separation
Solvent extraction
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Summary:The solvent extraction of Pr(Ⅲ) and Sm(Ⅲ) with trialkyl phosphine oxide(Cyanex 923) in chloroform,carbon tetrachloride,n-octane,cyclohexane,1,2-dichloroethane,benzene,toluene,xylene and nitrobenzene from acidic nitrate medium was investigated.On the basis of slope analysis data,the composition of the extracted species was determined as(M(NO3)3?2CY923),CY923 refers to Cyanex 923.The values of the equilibrium constants and the separation factors were calculated.The effect of the diluents on the metal extracti...
ISSN:1002-0721
2509-4963
DOI:10.1016/s1002-0721(09)60083-1