Potential Use of Resorcinol-Formaldehyde and Zirconyl - Molybdo Pyrophosphate Ion - Exchange Materials for the Chromatographic Separation of Cesium, Cobalt and Europium Ions

The distribution coefficient between 134 Cs(I), 60 Co(II) and 152,154 Eu(III) radioisotopes dissolved in HCl acid solution with Resorcinol-Formaldhyde (R-F) and Zirconyl-Molybdopyrophosphate (ZMPP) ion exchangers dried at 50 0 C have been studied using batch technique. The selectivity arrange was found to be Cs(I)  Eu(III)  Co(II). The capacity of R-F toward CS(I), Eu(III) and Co(II) was found to be 6.37, 2.86 and 1.66 meq/gm of the ion exchanger, respectively. A chromatographic column (0.6cm i.d) of 1 gm R-F exchanger was prepared and loaded with a mixture of (10 -3 M) 134 Cs, 60 Co and 152,154 Eu radioisotopes dissolved in 100 ml HCl acid solution pH = 2.5. Completely sorbent of Cs(I) and Eu(III) take place while only 35% of Co(II) was sorbed on the R-F exchanger. Successive elution of the 35% sorbedCo(II) take place using 12 ml of HCl acid solution pH = 1.2. Elution of Eu(III) required passing 15 ml HCl acid solution pH = 2.5, while removal of Cs(I) from the column need 24ml HCl acid solution (pH = 0.8). R-F ion exchanger is valuable in radioactive waste management and water treatment.