Abstract
Fission isotopes contribute approximately 10% of the total radioactivity removed from the heat transport circuit of reactor systems during the chemical decontamination process. Simulated corrosion products (SCP) (CrFeO3 and MxCrFe1−xO3) and with fission isotope substituted in SCP [MxNiCrFe1−xO4 (M = La, Ce and Zr; x ≤ 0.05)] were synthesised and its dissolution behavior were studied in permanganate medium. Fission isotope metal ion substitution in SCP showed enhanced ‘Cr’ dissolution rates during the permanganate treatment. Among the fission isotope (La, Ce and Zr) substituted oxide dissolution studies, ‘La’ release was more compare to ‘Ce’ and ‘Zr’. The release behavior of fission products studies showed that dissolved lanthanum is getting sorbed onto the insitu formed MnO2.
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Balaji, V., Chandramohan, P., Velmurugan, S. et al. Fission isotope release kinetics and its sorption on insitu formed MnO2 during the dissolution of fission isotope substituted chromium oxide in HMnO4. J Radioanal Nucl Chem 324, 791–801 (2020). https://doi.org/10.1007/s10967-020-07094-9
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DOI: https://doi.org/10.1007/s10967-020-07094-9