Separation of rare earth elements (REEs) from Choghart ore leach liquor by precipitation method

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عنوان دوره: اولین دوره بین المللی و بیست و هشتمین دوره ملی (1400)
In recent years, the separation of rare earth elements (REEs) from Thorium sources has been considered. One of the effective methods for this goal is precipitation. In this study, First, the compounds of the Choghart ore leach liquor were precipitated by NaOH. Then, in order to find the optimal pH range to separate thorium from rare elements, raffinate leaching was performed at various pH. The results showed that pH=3 is the optimum. Then Elements and compounds were precipitated by NaOH and a new raffinate was obtained. Result of new raffinate showed the amount of thorium decreased by 93% and amount of Y(III) and Ce(III) increased approximately three times.
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