SYMPOSIA PAPER Published: 01 January 1984
STP34459S

New Process for Zirconium and Hafnium Separation

Source

The separation of hafnium and zirconium, required for nuclear use of zirconium, is generally performed by liquid-liquid extraction in organic solvents. The paper describes a new process based on extractive distillation of zirconium chloride (ZrCl4) and hafnium chloride (HfCl4) in a solvent made of molten potassium chloride-aluminum chloride (KCl-AlCl3) mixture above 350°C at atmospheric pressure. The corresponding process is now in full-scale industrial production.

Author Information

Moulin, L
Companie Européene Du Zirconium, CEZUS, Paris, France
Thouvenin, P
Companie Européene Du Zirconium, CEZUS, Paris, France
Brun, P
Companie Européene Du Zirconium, CEZUS, Paris, France
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Details
Developed by Committee: B10
Pages: 37–44
DOI: 10.1520/STP34459S
ISBN-EB: 978-0-8031-4895-6
ISBN-13: 978-0-8031-0270-5