PROCESS FOR THE SEPARATION OF THE ELEMENTS ZIRCONIUM AND HAFNIUM
Patent
·
OSTI ID:4168963
A process is given for separation of Th and Zr involving partition of their tbiocyanates. In an example, a tetrachloride mixture containing 0.8% HfO/ sub 2/ was dissolved in water and the solution was saturated with NH/sub 4/SCN at 20 deg C. This solution was shaken with half its volume of diethyl ether 1.5N in HSCN. Analysis of the two phases showed k(Hf)= 18.9, k(Zr) = 3.5, beta = 5.4. A similar experiment in which anhydrous ZrCl/sub 4/ - HfCl/sub 4/ was slowly dissolved in saturated NH/sub 4/SCN solution gave k(Hf) = 16.5, k(Zr) = 1.6, beta = 10. Other examples are given. (T.R.H.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-014832
- OSTI ID:
- 4168963
- Report Number(s):
- GB 834271
- Country of Publication:
- United Kingdom
- Language:
- English
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