Abstract
In-situ precipitation of some radwaste elements with cerium(IV)- and tin(IV) antimonates (134Cs, 60Co, 85Sr and 152, 154Eu) together with 10−4 M of each Cs+, Co2+, Sr2+ and/or Eu3+ have been prepared and found that all the product precipitates prefer the ions of smaller ionic radii. The distribution coefficients of Cs+, Co2+, Sr2+ and Eu3+ for all products were determined and it was found that the separation factors between neighbouring pairs of metal ions are larger on tin(IV) antimonate (SnSb) than cerium(IV) antimonate (CeSb). The adsorption of Cs+, Co2+, Sr2+ on CeSb and SnSb column beds was investigated and the preliminary results given here demonstrate the promise of potential applicability of these materials in many separations connected with nuclear fuel cycle activities.
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