NIOBIUM-TANTALUM SEPARATION
Patent
·
OSTI ID:4261332
The usual method for the separation of tantalum and niobium consists of a selective solvent extraction from an aqueous hydrofluoric acid solution of the metals. A difficulty encountered in this process is the fact that the corrosion problems associated with hydrofluoric acid are serious. It has been found that the corrosion caused by the hydrofluoric acid may be substantially reduced by adding to the acidic solution an amine, such as phenyl diethanolamine or aniline, and adjusting pH value to between 4 and 6.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-013318
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2871092
- OSTI ID:
- 4261332
- Country of Publication:
- United States
- Language:
- English
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