Britholite-based matrix for actinides isolation

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Resumo

Britholite, a Ca-REE silicate sample with an apatite structure, was produced by cold crucible induction melting. Britholite has a simple composition, high capacity for actinides, and is stable in heated aqueous solutions. For the first time, the leaching rates of Nd (imitator of minor actinides) with water and brine at 200–250°C were determined to be 10–3 – 10–5 g/(m2 × day), which corresponds to a congruent dissolution of the matrix at a rate of 1 micron per 3–300 years.

Sobre autores

I. Mel’nikova

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences, Moscow, Russia

S. Yudintsev

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences, Moscow, Russia

Email: yudintsevsv@gmail.com

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