VERFAHREN ZUR REDUKTIVEN PLUTONIUM-RUECKEXTRAKTION AUS EINER ORGANISCHEN WIEDERAUFARBEITUNGSLOESUNG IN EINE WAESSRIGE, SALPETERSAURE LOESUNG UNTER ANWENDUNG EINES ELEKTROLYSESTROMES

• Main Authors: SCHMIEDER,HELMUT, HEILGEIST,MICHAEL, FLORY,KLAUS
• Format: Patent
• Language: German
• Published: 27.06.1985
• Edition: 3
• Subjects: APPARATUS THEREFOR; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A process for reductive plutonium stripping from an organic reprocessing solution into an aqueous, nitric solution by use of an electrolytic current, in which the aqueous solution is free of agents for the stabilization of the reduced valence of the plutonium, a HNO3 concentration in the range of 0.05 to 1.0 mol/l is established in the aqueous solution, and the reduction of Pu(IV) to Pu(III) is carried out at a maximum temperature of 40 DEG C.