INVESTIGATION OF A STANDARD CHEMICAL FLOWSHEET FOR THE USE OF U(IV) IN THE PUREX 1st CYCLE BY MEANS OF COMPLEMENTARY STUDIES IN MIXER--SETTLERS; recherche d'un diagramme chimique standard pour l'emploi de l'U(IV) dans le 1 cycle purex, au moyen d'etudes complementaires en melangeurs-decanteurs (in French)
Technical Report
·
OSTI ID:4785926
The conditions for the use of U(IV) as plutonium reductant in the U/Pu partition cycle have been tested in mixer-settlers runs with HSP solutions for Pu concentration in the range 16 to 800 mg/l. The solvent degradation effect on the process as checked, on the one hand with Co{sub 60}-gamma-irradiated solutions, on the other hand with an HSP solution originated in the plant. The risks of re-oxidation in the air-lifts were considered, so that the performances of the process to be expected when phase ratio up to 10 are needed. (auth)
- Research Organization:
- European Company for the Chemical Processing of Irradiated Fuels, Mol (Belgium)
- NSA Number:
- NSA-23-011604
- OSTI ID:
- 4785926
- Report Number(s):
- NP-17741; ETR-186
- Country of Publication:
- Belgium
- Language:
- French
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OSTI ID:4785926
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OSTI ID:4785926
+2 more
Related Subjects
N20510* -Chemistry-Radiochemistry & Nuclear Chemistry- Reactor Fuel Processing
CATIONS
FUEL ELEMENTS
PLUTONIUM
PUREX PROCESS
REDUCTION
REPROCESSING
SEPARATION PROCESSES
SOLVENT EXTRACTION
URANIUM COMPOUNDS
VALENCE
REACTOR FUEL ELEMENTS/reprocessing of
use of tetravalent uranium as plutonium reductant in Purex Process
PUREX PROCESS/ plutonium reduction by tetravalent uranium in
at Eurochemic plant
PLUTONIUM/ reduction by tetravalent uranium in Eurochemic fuel reprocessing
URANIUM IONS/ reactions of tetravalent
with plutonium in Eurochemic fuel reprocessing
CATIONS
FUEL ELEMENTS
PLUTONIUM
PUREX PROCESS
REDUCTION
REPROCESSING
SEPARATION PROCESSES
SOLVENT EXTRACTION
URANIUM COMPOUNDS
VALENCE
REACTOR FUEL ELEMENTS/reprocessing of
use of tetravalent uranium as plutonium reductant in Purex Process
PUREX PROCESS/ plutonium reduction by tetravalent uranium in
at Eurochemic plant
PLUTONIUM/ reduction by tetravalent uranium in Eurochemic fuel reprocessing
URANIUM IONS/ reactions of tetravalent
with plutonium in Eurochemic fuel reprocessing