ON A SEPARATION OF HAFNIUM AND ZIRCONIUM BY ELECTROLYSIS OF FUSED SALTS (in French)
The present study concerns separation of hafnium from zirconium by electrolysis, at 850 deg C, of a fused salt baih composed of 35 wt.% K/sub 2/ZrF/ sub 6/ and 65 wt.% NaCl, K/sub 2/ZrF/sub 6/ containing different amounts (C/sub 0/ ) of hafnium as fluohafnate K/sub 2/WF/sub 6/. The separation rate is extremely sensitive io electrolysis duration. At the beginning, it is of the order of 90 per cent for any initial hnfnium concentration (C/sub 0/), at least for the range from 0.28 to 1.4 wt.% Hf. Afterwards it decreases quickly to 15 to 20 per cent at the end of each term. The hafnium concentration in ihe fused bath is increasing as soon as the electrolysis proceeds. It is verified that the separation rate, compared with this hafnium concentration in the bath, is constant with a value of 90 per cent from the beginning to the end of each electrolytic run. (auth)
- Research Organization:
- Centre d'Etudes Nucleaires, Saclay, France
- NSA Number:
- NSA-14-000263
- OSTI ID:
- 4220384
- Journal Information:
- Metaux (Cossosion-Inds.), Journal Name: Metaux (Cossosion-Inds.) Vol. Vol: No. 388
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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