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Separation of Zr and Hf via fractional crystallization of K2Zr(Hf)F6 : a theoretical and experimental study
(North-West University, 2009)
Due to the low absorption cross section for thermal neutrons of zirconium (Zr) in contrast to hafnium (Hf), Zr-metal must essentially be Hf free (<100 ppm Hf) to be suitable for use in nuclear reactors. However, Zr and Hf ...