Multi-Loaded Metal Salt(s)-Ion Exchange Resins: Their Preparation and Applications

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As an extension of the study of metal salt-ion exchange resins, previously reported elsewhere, one or more kinds of insoluble metal salts could be incorporated in one ion exchange resin matrix, by utilizing the residual ion exchange capacity of the resins. We named the products multi-loaded metal salt(s)-lon exchange resins. Multi-loaded metal salt(s)-ion exchange resins can be classified into two categories: (a) multi-loaded single metal salt-ion exchange resin, which contains only one metal salt in an ion exchange resin, and (b) multi-lcaded composite metal salts-ion exchange resin, which contains two or more different metal salts in a resin. It was found that the adsorption ability for cesium of multi-loaded nickel ferrocyanide-Amberlite IRA-904 increased linearly with the number of multiload treatment, and that simultaneous adsorption of cesium and strontium was possible by using nickel ferrocyanide-calcium phosphate-Amberlite IRA-904.This paper deals with the preparation of the resins and their applications in the fields of radiochemistry and health physics. Structure of the resins was also studied.