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http://dx.doi.org/10.7844/kirr.2019.28.1.40

Solvent Extraction of Tb(III) from Chloride Solution using Organophosphorous Extractant, its Mixture and Ionic Liquids with Amines  

Oh, Chang Geun (Department of Advanced Materials Science & Engineering, Mokpo National University)
Son, Seong Ho (Korea Institute of Industrial Technology, Incheon Technology Service Centre)
Lee, Man Seung (Department of Advanced Materials Science & Engineering, Mokpo National University)
Publication Information
Resources Recycling / v.28, no.1, 2019 , pp. 40-46 More about this Journal
Abstract
The solvent extraction of Tb(III) from hydrochloric acid solution was investigated by employing single organophosphorus (D2EHPA, PC88A and Cyanex 272), its mixture with Alamine 336 and ionic liquids with Aliquat 336. The equilibrium pH after the extraction with extractant mixtures and ionic liquids was higher than that by single extractants. Among the mixtures and ionic liquids, only the ionic liquid with Cyanex 272 and Aliquat 336 showed synergism to the extraction of Tb(III). The extraction percentage of Tb(III) by the extractant mixtures was lower than that by single extractant and the extraction order was in the following order : D2EHPA + Alamine 336 > PC88A + Alamine 336 > Cyanex 272 + Alamine 336. The extraction order of Tb(III) by the ionic liquids was Cyanex 272 + Aliqaut 336 > PC88A + Aliquat 336 > D2EHPA + Aliquat 336.
Keywords
Tb(III); Organophosphorus; extractant mixture; ionic liquids;
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Times Cited By KSCI : 11  (Citation Analysis)
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