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THE EVALUATION OF NA2O2 AS A SINTERING AGENT IN SOLID STATE DISSOLUTION OF POTENTIAL SECONDARY SOURCES FOR RARE EARTH ELEMENTS
(STEF92 Technology, 2021-12-20, Laurentiu Valentin Soroaga, Cecilia Arsene, Romeo Iulian Olariu)
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Solid-state dissolution by sintering in the presence of Na2O2, a strong oxidizing agent, isreported in the present study as a preparatory procedure prior analysis by ICP-MS. Theadequacy of the combined procedure for the purpose of identification of potentialsecondary sources for REEs from difficult matrixes like, for example, mining wasteswas investigated. The method was applied to Certified Reference Materials (CRMs)with silicate-rich complex matrices, namely rhyolite, and granite. From each materialtwo sample we...
Recycling2021