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New Process for Zirconium and Hafnium Separation Pages: 8 Published: Jan 1984
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View License Agreement Source: STP824-EB Abstract 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. Keywords: hafnium separation, extractive distillation, pure zirconium tetrachloride, zirconium sponge Paper ID: STP34459S Committee/Subcommittee: B10.02 DOI: 10.1520/STP34459S ASTM International is a member of CrossRef. | ||