Towards the production of carrier-free 99Mo by neutron activation of 98Mo in molybdenum hexacarbonyl-Szilard-Chalmers enrichment
J.W.J. van Dorp (TU Delft - RST/Applied Radiation & Isotopes)
DS Mahes (Student TU Delft)
P. Bode (TU Delft - RST/Applied Radiation & Isotopes)
H.T. Wolterbeek (TU Delft - RST/Applied Radiation & Isotopes)
A.G. Denkova (TU Delft - RST/Applied Radiation & Isotopes)
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Abstract
The neutron irradiation of molybdenum hexacarbonyl has been systematically studied to identify possible improvements for the production of molybdenum-99. After
irradiation, the targets were dissolved in dichloromethane, and Szilard-Chalmers liquid-liquid extraction was carried out with aqueous extractants.
The effects of the irradiation time, the aqueous phase composition and the irradiated mass were studied with a focus on the chemistry involved. Stable extraction
yields of 20% were obtained with enrichment decreasing with target decomposition. Improved enrichment requires decreased decomposition.
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