Solvent extraction of thorium from nitrate medium by TBP, Cyanex272 and their mixture

The extraction behavior of thorium(IV) has been investigated with tri-butyl phosphate (TBP) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272) in kerosene from nitrate medium. The effect of operating variables including time, aqueous phase acidity (pH), extractant concentration and temperatu...

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Bibliographic Details
Published inJournal of radioanalytical and nuclear chemistry Vol. 303; no. 3; pp. 2093 - 2099
Main Authors Shaeri, Mostaan, Torab-Mostaedi, Meisam, Rahbar Kelishami, Ahmad
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.03.2015
Springer
Subjects
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear fuel cycle
Nuclear Physics
Phosphates
Phosphoric acid
Physical Chemistry
Uranium
Cyanex272
TBP
Solvent extraction
Thorium
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Summary:The extraction behavior of thorium(IV) has been investigated with tri-butyl phosphate (TBP) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272) in kerosene from nitrate medium. The effect of operating variables including time, aqueous phase acidity (pH), extractant concentration and temperature were investigated. This study also examined the synergistic enhancement of the extraction of thorium(IV) from nitrate medium by mixtures of TBP and Cyanex272 for the first time. The optimum synergistic enhancement factor of 3.86 was obtained at a Cyanex272/TBP molar ratio of 1:4.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-014-3718-5