METHOD OF REMOVING 60CO FROM PROCESS SOLUTIONS OF RADIOCHEMICAL PLANTS RELATING TO MEDIUM- AND LOW-ACTIVITY WASTES Russian patent published in 2015 - IPC G21F9/20 

FIELD: chemistry.

SUBSTANCE: method of removing ⁶⁰Co from process solutions of radiochemical plants, relating to medium- and low-activity wastes, is carried out via preliminary heterogeneous catalytic decomposition of organic components contained in the process solutions (liquid radioactive wastes) of radiochemical plants, on a solid-phase catalyst followed by extraction of ⁶⁰Co from the solutions via coprecipitation thereof with residues of complex cyanides and hydroxides of transition metals (Co, Ni, Zn) and final ion-exchange purification of the filtrate on a cationic-exchange resin (Lewatit MonoPlus TP 207 type).

EFFECT: low residual specific activity of solutions of medium- and low-activity wastes, which enables to change the category of the wastes into non-radioactive wastes.

14 cl, 1 dwg, 6 tbl, 3 ex