SEPARATION OF PLUTONIUM
Patent
·
OSTI ID:4122150
Separation of plutonium from irradiated uranium by dissolution with HNO/ sub 3/ and adsorption of plutonium, e.g., with bismuth phosphate precipitation, may be facilitated if the removal of excess HNO/sub 3/ and reduction of plutonium are carried out with one reagent, formic acid. For solutions of nitrate concentrations approximately 70%, one or more moles formic acid per mole HNO/sub 3/ should be added; whereas, for nitrate concentrations approximately 40%, 1.5 moles formic acid per mole HNO/sub 3/ are needed. The temperature should be 75 to 90 deg C in order to speed up the reaction and drive off the resulting gases. In this process the acidity should be reduced to below 0.5 N for adsorption of plutonium on a formaldehyde-sulfonated phenol resin (Amberlite IR-1) or bismuth phosphate, (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-002715
- OSTI ID:
- 4122150
- Report Number(s):
- GB 852151
- Country of Publication:
- United Kingdom
- Language:
- English
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