Study of new routes for purification of fission 99Mo

Marcos Oliveira Damasceno; Fernanda Marques Alves da Silva; Jacinete Lima dos Santos; Ricardo Rodrigues Dias; Christina A. L. G. O. Forbicini

doi:10.15392/bjrs.v9i2.1623

Authors

Marcos Oliveira Damasceno Instituto de Pesquisas Energéticas e Nucleares - IPEN https://orcid.org/0000-0002-8066-2965
Fernanda Marques Alves da Silva Instituto de Pesquisas Energéticas e Nucleares - IPEN
Jacinete Lima dos Santos Instituto de Pesquisas Energéticas e Nucleares - IPEN
Ricardo Rodrigues Dias Instituto de Pesquisas Energéticas e Nucleares - IPEN
Christina A. L. G. O. Forbicini Instituto de Pesquisas Energéticas e Nucleares - IPEN

DOI:

https://doi.org/10.15392/bjrs.v9i2.1623

Keywords:

99Mo fission, 99Mo purification, 99Mo sublimation

Abstract

^99mTc is the most applied medical radioisotope in the world, especially for cancer diagnosis procedures. It is provided by ⁹⁹Mo radioactive decay, which is one of the fission products from the uranium irradiation in nuclear reactors. At the main production plants, the ⁹⁹Mo chemical processing may be lined up in several steps to separate it from other fission products according to the features of the used targets or the local requirements as well. In this work, two routes of ⁹⁹Mo purification, MR1, and MR2, were purposed as an alternative to be set up in the Brazilian Multipurpose Reactor project (BMR). The MR1 route was performed by three chromatographic columns packed with Dowex 1x8 resin, Chelex resin, and alumina, respectively. The route MR2 was carried out also by chromatography applying two columns filled with Dowex 1x8 and alumina respectively, but including a sublimation process performed in a tubular oven under programmed conditions. The final yield for the MR1 route was 84.4 % and the overall time process was about 7 hours, whereas the MR2 route reached 75.3 % in 9 hours.

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Author Biographies

Marcos Oliveira Damasceno, Instituto de Pesquisas Energéticas e Nucleares - IPEN

Pesquisador Adjunto do Centro de Química e Meio Ambiente

Fernanda Marques Alves da Silva, Instituto de Pesquisas Energéticas e Nucleares - IPEN

Bolsista de programa de capacitação institucional CNPq no Centro de Química e Meio Ambiente -IPEN/CNEN

Jacinete Lima dos Santos, Instituto de Pesquisas Energéticas e Nucleares - IPEN

Bolsista de programa de capacitação institucional CNPq no Centro de Química e Meio Ambiente -IPEN/CNEN

Ricardo Rodrigues Dias, Instituto de Pesquisas Energéticas e Nucleares - IPEN

Tecnico Químico no Centro de Química e Meio Ambiente -IPEN/CNEN

Christina A. L. G. O. Forbicini, Instituto de Pesquisas Energéticas e Nucleares - IPEN

Pesquisadora Senior no Centro de Química e Meio Ambiente -IPEN/CNEN

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