METHOD FOR EXTRACTION RECOVERY OF PUREX-PROCESS HIGH-ACTIVITY RAFFINATE IN SPENT NUCLEAR FUEL OF NUCLEAR POWER STATIONS Russian patent published in 2007 - IPC G21C19/46 

Abstract RU 2295166 C1

FIELD: recovering spent nuclear fuel.

SUBSTANCE: proposed method includes extraction of transplutonium, rare-earth elements, and molybdenum from nitric oxide solution. Corroded iron is extracted from raffinate in bivalent condition; to this end extraction agent delivered for extraction of transplutonium and rare-earth elements is pre-treated with reducer solution which is then conveyed to flow corrector of source solution composition wherein it is held up to iron reduction.

EFFECT: facilitated extraction and separation of target components.

3 cl, 1 dwg, 2 tbl

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RU 2 295 166 C1

Authors

Zil'Berman Boris Jakovlevich

Goletskij Nikolaj Dmitrievich

Shmidt Ol'Ga Vital'Evna

Kukharev Dmitrij Nikolaevich

Dates

2007-03-10Published

2005-07-19Filed