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1. (WO2017099189) METHOD FOR SEPARATING AND RECOVERING LONG-LIVED FISSION PRODUCTS FROM RADIOACTIVE WASTE BY USING IONIC LIQUID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/099189 International Application No.: PCT/JP2016/086606
Publication Date: 15.06.2017 International Filing Date: 08.12.2016
IPC:
G21F 9/28 (2006.01) ,C25B 1/00 (2006.01) ,C25C 1/20 (2006.01) ,C25C 1/22 (2006.01) ,G21C 19/46 (2006.01) ,G21F 9/06 (2006.01)
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
28
Treating solids
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1
Electrolytic production of inorganic compounds or non-metals
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
C
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
1
Electrolytic production, recovery or refining of metals by electrolysis of solutions
20
of noble metals
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
C
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
1
Electrolytic production, recovery or refining of metals by electrolysis of solutions
22
of metals not provided for in groups C25C1/02-C25C1/2089
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
C
NUCLEAR REACTORS
19
Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
42
Reprocessing of irradiated fuel
44
of irradiated solid fuel
46
Aqueous processes
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
04
Treating liquids
06
Processing
Applicants:
学校法人 慶應義塾 KEIO UNIVERSITY [JP/JP]; 東京都港区三田二丁目15番45号 15-45, Mita 2-chome, Minato-ku, Tokyo 1088345, JP
Inventors:
片山 靖 KATAYAMA, Yasushi; JP
吉井 一記 YOSHII, Kazuki; JP
立川 直樹 TACHIKAWA, Naoki; JP
Agent:
特許業務法人三枝国際特許事務所 SAEGUSA & PARTNERS; 大阪府大阪市中央区道修町1-7-1 北浜TNKビル Kitahama TNK Building, 1-7-1, Doshomachi, Chuo-ku, Osaka-shi, Osaka 5410045, JP
Priority Data:
2015-23994109.12.2015JP
Title (EN) METHOD FOR SEPARATING AND RECOVERING LONG-LIVED FISSION PRODUCTS FROM RADIOACTIVE WASTE BY USING IONIC LIQUID
(FR) PROCÉDÉ DE SÉPARATION ET DE RÉCUPÉRATION DE PRODUITS DE FISSION À LONGUE DURÉE DE VIE À PARTIR DE DÉCHETS RADIOACTIFS AU MOYEN D’UN LIQUIDE IONIQUE
(JA) イオン液体を用いた放射性廃棄物からの長寿命核分裂生成物の分離および回収方法
Abstract:
(EN) 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.
(FR) La présente invention concerne un procédé de séparation de récupération de produits de fission à longue durée de vie à partir de déchets radioactifs qui comprend : des étapes (16, 21) de dissolution, dans un liquide ionique, d’au moins un sel choisi parmi Cs, Se, Pd et Zr qui est contenu dans des déchets radioactifs ; et des étapes (17, 22) de séparation et de récupération, sous la forme d'un métal ou d'un alliage, d’au moins l’un choisi parmi Cs, Se, Pd et Zr, par électrolyse du liquide ionique contenant l’au moins un sel choisi parmi Cs, Se, Pd et Zr.
(JA) 放射性廃棄物からの長寿命核分裂生成物の分離および回収方法は、放射性廃棄物中に含まれるCs、Se、PdおよびZrから選択される少なくとも一つの塩をイオン液体に溶解する工程(16,21)、および前記Cs、Se、PdおよびZrから選択される少なくとも一つの塩を含むイオン液体の電解によりCs、Se、PdおよびZrから選択される少なくとも一つを金属または合金として分離および回収する工程(17,22)を含む。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)