METHOD OF SELECTIVE AMERICIUM REMOVAL FROM NITRIC WATER PHASE Russian patent published in 2015 - IPC C22B60/02 C22B3/00 

Abstract RU 2544716 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and can be used during recycling and disposal of the spent nuclear fuel. Method includes americium extraction from nitric water phase by means of its circulation in the first extractor, washing of the obtained organic phase in the second extractor, and selective reextraction of the americium in the third extractor. Then the lanthanides reextraction is performed from the obtained phase by means of its circulation in the forth extractor.

EFFECT: selective extraction of the americium is ensured from the nitric water phase containing americium, curium and fission products including lanthanides and yttrium, and optionally containing uranium, plutonium and neptunium in trace quantities.

23 cl, 2 dwg, 10 tbl, 3 ex

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RU 2 544 716 C2

Authors

Ehr,Ksav'E

Baron,Paskal'

Sorel',Kristian

Khill,Kleman

Bern'E,Zhil'

Dates

2015-03-20Published

2010-07-26Filed