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Extraction performance of a fluorous phosphate for Zr(IV) from HNO$$_{3}$$ solution; Comparison with tri-$$n$$-butyl phosphate

Ueda, Yuki   ; Kikuchi, Kei; Sugita, Tsuyoshi   ; Motokawa, Ryuhei   

We have newly-designed fluorous phosphate(TFP) for the effective Zr(IV) ion extractant as an alternative extractant against the conventional organic phosphate, tri-$$n$$-butyl phosphate(TBP). Zr(IV) ion extraction system using the TBP has many problems such as the formation of the third phase during liquid-liquid extraction. Here, we develop the fluorous extraction system based on the TFP-perfluorohexane for the Zr(IV) ion extraction to improve the Zr(IV) ion extraction system with an effective extractability and without the third phase formation. Our main findings were that the significant high extraction performance of the TFP for Zr(IV) ion as compared with TBP, and the origins of the high extraction performance of the TFP are related to the water and HNO$$_{3}$$ contents in the fluorous phase and the stability of the complex, Zr(No$$_{3}$$)$$_{4}$$(TFP)$$_{3}$$.



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Category:Chemistry, Multidisciplinary



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