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 Cs-134(I), Co-60(II) and Eu-152,Eu-154(III) radioisotopes dissolved in HCl acid solution with Resorcinol-Formaldhyde (R-F) and Zirconyl-Molybdopyrophosphate (ZMPP) ion exchangers dried at 50 degrees 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) Cs-134, 60Co and Eu-152,Eu-154 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.