Development of process for purification of strontium nitrate rich solution to qualify for 90Sr–90Y generator

Development of process for purification of strontium nitrate rich solution to qualify for 90Sr–90Y generator

90 Sr (T 1/2  = 28 y) is always in equilibrium with 90 Y in High Level Liquid waste (HLLW) and hence 90 Sr is a suitable long lasting source of 90 Y, if it is purified suitably for therapeutic applications. A combination of CMPO & TBP was found to be the most suitable solvent system for alpha ac...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2023-09, Vol.332 (9), p.3579-3585
Hauptverfasser: Pareek, Pranshu, Singh, Suman Kumar, Mukhopadhyay, Sulekha, Mehta, D. B., Manohar, S.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Contaminants
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Liquid wastes
Nuclear Chemistry
Nuclear Physics
Phosphoric acid
Physical Chemistry
Solvents
Strontium 90
Yttrium isotopes
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Zusammenfassung:90 Sr (T 1/2  = 28 y) is always in equilibrium with 90 Y in High Level Liquid waste (HLLW) and hence 90 Sr is a suitable long lasting source of 90 Y, if it is purified suitably for therapeutic applications. A combination of CMPO & TBP was found to be the most suitable solvent system for alpha activity removal. CMPO has high selectivity for alpha contaminants (Pu/Am) w.r.t. 90 Sr. For regeneration of spent organic, 3 M Phosphoric acid was most suitable with the ability to strip back more than 98% of gross alpha activity in single contact and thus solvent system was qualified for recycling.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09063-4