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STUDY OF URANIUM(IV) NITRATE AS REDUCTANT FOR PLUTONIUM. I. THE PREPARATION OF URANIUM(IV) NITRATE SOLUTIONS. Technical Report No. 118.

Technical Report ·
OSTI ID:4571069
; ; ; ; ;
Electrolytic reduction of uranyl nitrate solutions has been successfully used to prepare pure aqueous and TBP/SST uranium (IV) nitrate solutions for analytical purposes. It has also been used to produce hydrazine-nitrate-stabilized aqueous uranium (IV) nitrate solutions for use as plutonium reductant in a 'Purex' type aqueous reprocessing plant. Unstabilized aqueous and TBP/SST solutions containing more than 99.9% uranium (IV) have been prepared by using an electrolytic cell with platinum electrodes. For plant use, two types of cell have been developed. Both have a platinum anode, but differ in using mercury or platinum as cathode material. Overall and differential current efficiencies of 100% have been obtained at current densities of 250 mA/cm2 for up to 50% uranium (VI) conversion; for 85% conversion the overall and differential current efficiencies are 90% and 65% respectively. (auth)
Research Organization:
European Company for the Chemical Processing of Irradiated Fuels, Mol (Belgium)
NSA Number:
NSA-22-012274
OSTI ID:
4571069
Report Number(s):
NP--17197; ETR--180
Country of Publication:
Belgium
Language:
English

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Related Subjects

ANODES
CURRENTS
EFFICIENCY
ELECTROLYTIC CELLS
N20210* --Chemistry--Inorganic
Organic
& Physical Chemistry--Chemical Properties
PLATINUM
PREPARATION
REDUCTION
SOLUTIONS
URANIUM NITRATES
URANIUM NITRATES/preparation by electrolytic reduction of uranyl nitrate
URANYL NITRATES
URANYL NITRATES/reduction to uranium nitrate
electrolytic