Process for immobilizing ion-exchangers by hydraulic binding-material.

摘要

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 %.