Behaviour of Zr, Hf, Nb, Ta and Pa on macroporous anion exchanger in chloride–fluoride media Original Research Article

Sorption properties of Zr, Hf, Nb, Ta and Pa at trace level towards a macroporous anion exchanger in HF–HCl media were investigated with two ion exchange methods: static (batch technique) and dynamic (column chromatography using the elution mode). Variations of the distribution coefficients as a function of HCl and HF concentration in the range 0.02–0.8 M for both acids are presented in the form of contour plots. Some of the most promising separation possibilities are pointed out.