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There are several metasomatic uranium deposits in the area around Mount Isa in Queensland, containing a total of 56,400t of uranium. Many of these ores are refractory in nature, meaning that relatively high leach temperatures (>75°C) and reagent dosages (>50g/L H2SO4) are needed to effectively extract the uranium from them. Also, these ores are hosted in alkaline rock which means that acid leaching...
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