Two-Step Procedure for the Iodine Removal from Nuclear Fuel Solutions

In order to minimize the consumption of iodine filters in a nuclear fuel reprocessing plant without increasing the radiological exposure of the environment, it is desirable to route the {sup 129}I almost quantitatively into the dissolver off-gas. To achieve this, an additional step for the complete removal of the iodine from the nuclear fuel solution after dissolution is proposed. The distribution of the iodine residues in the fuel solution between nitric acid and TBP, MIBK, toluene and dodecane is also measured. (orig.).