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1. WO1988009040 - METHOD FOR IMMOBILIZATION OF RADIOACTIVE ION EXCHANGE RESINS BY MEANS OF A HYDRAULIC BINDER

Publication Number WO/1988/009040
Publication Date 17.11.1988
International Application No. PCT/FR1988/000233
International Filing Date 11.05.1988
IPC
G21F 9/30 2006.1
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9Treating radioactively contaminated material; Decontamination arrangements therefor
28Treating solids
30Processing
CPC
G21F 9/304
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9Treating radioactively contaminated material; Decontamination arrangements therefor
28Treating solids
30Processing
301by fixation in stable solid media
302in an inorganic matrix
304Cement or cement-like matrix
Applicants
  • SOCIETE GENERALE POUR LES TECHNIQUES NOUVELLES (S. [FR]/[FR] (AllExceptUS)
  • MAGNIN, Guy [FR]/[FR] (UsOnly)
  • MAGNIN, Marie-Françoise [FR]/[FR] (UsOnly)
  • AUBERT, Véronique [FR]/[FR] (UsOnly)
Inventors
  • MAGNIN, Guy
  • MAGNIN, Marie-Françoise
  • AUBERT, Véronique
Agents
  • CABINET BEAU DE LOMENIE
Priority Data
87/0687115.05.1987FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR IMMOBILIZATION OF RADIOACTIVE ION EXCHANGE RESINS BY MEANS OF A HYDRAULIC BINDER
(FR) PROCEDE D'IMMOBILISATION DE RESINES ECHANGEUSES D'IONS RADIOACTIVES PAR UN LIANT HYDRAULIQUE
Abstract
(EN) Method for immobilization of radioactive ion exchange resins by means of a hydraulic binder, particularly borate-containing resins. According to the method, the resins are allowed to settle and brought in contact with an eluent solution of 100-300 g/l in Ca(NO3)2 with a ratio of 1-2 l/kg of settled resins during 3 hours at the most and, to the medium having a pH » 9 there is added a hydraulic binder with low hydration heat so that the weight ratio eluent solution water/binder is comprised between 0.3 and 0.5 and the incorporation ratio settled resins/coated product (by weight) is comprised between 3 and 10 %.
(FR) L'invention concerne un procédé d'immobilisation de résines échangeuses d'ions radioactives par un liant hydraulique, notamment des résines boratées. Selon le procédé, les résines sont décantées puis mises en contact pendant 3 h au plus avec une solution éluante de 100 à 300 g/l en Ca(NO3)2 à raison de 1 à 2 l/kg de résines décantées et que, au milieu de pH»9 est ajouté un liant hydraulique à faible chaleur d'hydratation de façon à ce que le rapport eau de la solution éluante/liant (en poids) soit compris entre 0,3 et 0,5 et que le taux d'incorporation résines décantées/enrobées (en poids) soit compris entre 3 et 10 %.
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