Optimizing composition of TODGA/SiO2-P adsorbent for extraction chromatography process

As a part of developing extraction chromatography technology for minor actinides (MA(III); Am and Cm) recovery from spent fast reactor fuels, improvement on the TODGA/SiO2-P adsorbent to enhance its desorption efficiency was carried out. Batchwise adsorption/elution experiments showed that optimizat...

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Bibliographic Details
Published in:Procedia chemistry 2012, Vol.7, p.411-417
Main Authors: Watanabe, Sou, Arai, Tsuyoshi, Ogawa, Tsuyoshi, Takizawa, Makoto, Sano, Kyouhei, Nomura, Kazunori, Koma, Yoshikazu
Format: Article
Language:English
Subjects:
degree of cross linkage
Extraction chromatography
minor actinides
porous support
TODGA
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Summary:As a part of developing extraction chromatography technology for minor actinides (MA(III); Am and Cm) recovery from spent fast reactor fuels, improvement on the TODGA/SiO2-P adsorbent to enhance its desorption efficiency was carried out. Batchwise adsorption/elution experiments showed that optimizations in amount of the extractant impregnated in the support of the SiO2-P which is the porous silica coated with polymer and degree of the cross linkage of polymer succeeded in finding the optimum values. Inactive column separation experiments with the simulated high level liquid waste and the optimized adsorbent revealed that decontamination factors of fission products can also be improved as well as the recovery yields.
ISSN:1876-6196
1876-6196
DOI:10.1016/j.proche.2012.10.064