Abstract
Ion exchange separation of Rb and Cs was investigated by the batch and the column methods using 36Rb and 137Cs as radioactive indicators. Dowex 50-X8 (200400 mesh) was used as the exchange resin and HCl solutions were employed for the eluant. From the values of both elements determined by the batch method, it was shown that the lower concentration of the eluant would give the more effective separation. By the column method, elution curves for each element were taken automatically using a recording rate-meter. The effects of the amounts of the salts in question and of the concentration of HCl to the elution curves were examined. From the results of the foregoing experiments, Cs and Rb from trace quantities to 0.058 m mole could be separated using 0.5N HCl as the eluant with the column of 25.5 cm×φ 0.6 cm.
Effects of Na, K and NH3 to the elution curve of carrier free 137Cs were investigated and the separation of them from 137Cs was made.
