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Title:
METHOD FOR SEPARATING AND RECOVERING LONG-LIVED FISSION PRODUCTS FROM RADIOACTIVE WASTE BY USING IONIC LIQUID
Document Type and Number:
WIPO Patent Application WO/2017/099189
Kind Code:
A1
Abstract:
This method for separating and recovering long-lived fission products from radioactive waste comprises: steps (16, 21) of dissolving, in an ionic liquid, at least one salt selected from Cs, Se, Pd and Zr which are contained in radioactive waste; and steps (17, 22) of separating and recovering, as a metal or an alloy, at least one selected from Cs, Se, Pd and Zr, by electrolysis of the ionic liquid containing the at least one salt selected from Cs, Se, Pd and Zr.

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Inventors:
KATAYAMA YASUSHI (JP)
YOSHII KAZUKI (JP)
TACHIKAWA NAOKI (JP)
Application Number:
PCT/JP2016/086606
Publication Date:
June 15, 2017
Filing Date:
December 08, 2016
Export Citation:
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Assignee:
UNIV KEIO (JP)
International Classes:
G21F9/28; C25B1/00; C25C1/20; C25C1/22; G21C19/46; G21F9/06
Foreign References:
JP2009510261A2009-03-12
JP2014224281A2014-12-04
JP2008150655A2008-07-03
Other References:
PO-YU CHEN ET AL.: "Electrodeposition of cesium at mercury electrodes in the tri-1-butylmethylammonium bis((trifluoromethyl)sulfonyl)imide room- temperature ionic liquid,", ELECTROCHIMICA ACTA, vol. 49, no. 28, 2004, pages 5125 - 5138, XP004606594
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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