EP 2913826 B1 20200617 - METHOD FOR ELIMINATING RADIOACTIVE CESIUM AND METHOD FOR PRODUCING BURNED PRODUCT
Title (en)
METHOD FOR ELIMINATING RADIOACTIVE CESIUM AND METHOD FOR PRODUCING BURNED PRODUCT
Title (de)
VERFAHREN ZUR BESEITIGUNG VON RADIOAKTIVEM CÄSIUM UND VERFAHREN ZUR HERSTELLUNG EINES GEBRANNTEN PRODUKTS
Title (fr)
PROCÉDÉ D'ÉLIMINATION DE CÉSIUM RADIOACTIF ET PROCÉDÉ DE PRODUCTION D'UN PRODUIT CUIT
Publication
Application
Priority
- JP 2012077909 W 20121029
- JP 2012083594 W 20121226
Abstract (en)
[origin: EP2913826A1] Provided is a method of easily and efficiently removing radioactive cesium from a waste contaminated with radioactive cesium. The method of removing radioactive cesium includes a heating step of heating a waste contaminated with radioactive cesium and a CaO source and/or a MgO source at a temperature of from 1,200 to 1,350°C to volatilize the radioactive cesium in the waste. In the heating step, the kinds and the blending ratios of the waste, the CaO source, and the MgO source are set so that the masses of CaO, MgO, and SiO 2 satisfy the equation: (CaO+1.39×MgO)/SiO 2 )=1.0 to 2.5 (in the equation, CaO, MgO, and SiO 2 represent the mass of calcium in terms of an oxide, the mass of magnesium in terms of an oxide, and the mass of silicon in terms of an oxide, respectively).
IPC 8 full level
CPC (source: CN EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2913826 A1 20150902; EP 2913826 A4 20160518; EP 2913826 B1 20200617; CA 2889738 A1 20140508; CN 104769679 A 20150708; CN 104769679 B 20170606; JP 2016191716 A 20161110; JP 2016224055 A 20161228; JP 6243484 B2 20171206; JP 6628282 B2 20200108; JP WO2014068800 A1 20160908; KR 102004580 B1 20190726; KR 20150079546 A 20150708; WO 2014068643 A1 20140508; WO 2014068800 A1 20140508
DOCDB simple family (application)
EP 12887510 A 20121226; CA 2889738 A 20121226; CN 201280076693 A 20121226; JP 2012077909 W 20121029; JP 2012083594 W 20121226; JP 2014544206 A 20121226; JP 2016136637 A 20160711; JP 2016136646 A 20160711; KR 20157001651 A 20121226