The separation of zirconium and hafnium from (NH4)3Zr(Hf)F7 using amine-based extractants

Abstract

80% were reached both for Zr and Hf. In all cases equilibrium was achieved in less than 25 minutes of contact between the organic and the aqueous phase. Stripping of metals was achieved with >40% separation and 50% extraction using a sodium chloride (0.7 mol/dm³) stripping solution.]]>