Extraction of U(VI), Zr(IV) and Th(IV) from perchlorate media, by PC-88A
作者： R. K. Singh , P. M. Dhadke
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摘要: Extraction of U(VI), Zr(IV) and Th(IV) has been investigated from perchlorate media using 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester (PC-88A) dissolved in toluene. The extraction was found to be quantitative the pH range 1.6 3.2, 2.0 4.7 2.3 3.8, respectively, with 3.0.10-3, 5.6.10-4 1.0.10-2M PC-88A U(VI) stripped 4.0M HCl, 2.5M NaF 8.0M HCl metal loaded organic phase containing probable extracted species have ascertained by plotting log D vs. [HR] as UO2R2 .2HR, ZrR4 .2HR ThR4 .4HR, respectively. separated other associated metals. This method proved determination some real samples.
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