Enviar artigo por via de e-mail Dynamic tests of cesium-137 recovery from the Mayak model alkaline HLW using p-isononylcalix[6]arene based extractant
- Autores: Yumaguen A.Z.1,2,3, Babitova E.S.1,4, Logunov M.V.2, Karavan M.D.1,4, Kozlov P.V.2,3, Konnikov A.V.2, Smirnov I.V.1,4
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Afiliações:
- St. Petersburg State University
- Mayak Production Association
- Ozyorsk Institute of Technology
- Khlopin Radium Institute
- Edição: Volume 66, Nº 2 (2024)
- Páginas: 143-156
- Seção: Articles
- URL: https://ter-arkhiv.ru/0033-8311/article/view/661158
- DOI: https://doi.org/10.31857/S0033831124020052
- ID: 661158
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Resumo
The article presents the results of studies on composition optimization, properties, and laboratory dynamic tests of extraction mixtures based on p-isononylcalix[6]arene for the alkaline HLW purification to remove 137Cs. The distribution of 137Cs among the products of the technological scheme is presented and the coefficients of raffinate purification to remove 137Cs are determined. It was revealed that, in the case of using nitric acid as a stripping solution, nitrosation of p-isononylcalix[6]arene is possible in the technological process. The composition of the resulting product was determined. To prevent nitrosation of p-isononylcalix[6]arene, formic acid was used in the stripping stage, which ensured stable operation of the extraction stand for 48 h with 137Cs extraction from model alkaline HLW at a level of 99.7%.
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Sobre autores
A. Yumaguen
St. Petersburg State University; Mayak Production Association; Ozyorsk Institute of Technology
Autor responsável pela correspondência
Email: cpl@po-mayak.ru
Rússia, St. Petersburg; Ozyorsk; Ozyorsk
E. Babitova
St. Petersburg State University; Khlopin Radium Institute
Email: cpl@po-mayak.ru
Rússia, St. Petersburg; St. Petersburg
M. Logunov
Mayak Production Association
Email: cpl@po-mayak.ru
Rússia, Ozyorsk
M. Karavan
St. Petersburg State University; Khlopin Radium Institute
Email: cpl@po-mayak.ru
Rússia, St. Petersburg; St. Petersburg
P. Kozlov
Mayak Production Association; Ozyorsk Institute of Technology
Email: cpl@po-mayak.ru
Rússia, Ozyorsk; Ozyorsk
A. Konnikov
Mayak Production Association
Email: cpl@po-mayak.ru
Rússia, Ozyorsk
I. Smirnov
St. Petersburg State University; Khlopin Radium Institute
Email: igor_smirnov@khlopin.ru
Rússia, St. Petersburg; St. Petersburg
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