HEATS OF THE IMMERSION OF CO2-EXCHANGE RESINS( AND CU2+ CONTAINED CHELATING ION)

The heats of the immersion of amino, phosphonic and amino phosphonic i on-exchange resins containing different amounts of cobalt or copper io ns have been determined with the help of a Calvet microcalorimeter. Th e adsorption of the water Vapour on phosphonic ion-exchange resin in d ifferent ionic forms (H+, Co2+, Cu2+) was studied and enthalpy of the immersion of dry and partially hydrated resins was measured by microca lorimetrical method. The formation of different structures during the water interaction with resin is reflected on the dependence: hydration energy - metal content. The correlation of the Delta H of the immersi on and Delta H of the metal ion sorption with the catalytical activity of sorbed complexes of these resins has been shown. (C) 1997 Elsevier Science B.V.