Process for the immobilization of ion exchange resins originating from the secondary circuits of pressurized water nuclear reactors and gas- cooled graphite-moderated reactors

摘要

The present invention relates to a process for the immobilization of ion hange resins originating from the secondary circuits of pressurized water nuclear reactors and gas-cooled graphite- moderated reactors, wherein the ion exchange resins are saturated with a base, preferably sodium hydroxide, under conditions such that the pH of the medium is greater than about 9 and such as to favor the release of ammonia, after which the said resins are concreted with a hydraulic binder.