New Process for Zirconium and Hafnium Separation

L Moulin; P Thouvenin; P Brun

doi:10.1520/STP34459S

SYMPOSIA PAPER Published: 01 January 1984

STP34459S

New Process for Zirconium and Hafnium Separation

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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

New Process for Zirconium and Hafnium Separation

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