Process for separating zirconium and hafnium

Details Process for separating zirconium and hafnium Process for separating zirconium and hafnium

2007-05-02

2009-12-22

Gonzalez, Porfirio Nazario (Department: 1621)

Chemistry: physical processes

Physical processes

Crystallization

C556S052000

Reexamination Certificate

active

07635396

ABSTRACT:
The present invention provides a new process for separating zirconium and hafnium compounds, in particular to remove traces of zirconium compounds from hafnium compounds, using fractional crystallisation, as well as hafnium compounds obtainable in accordance with this process.

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