Process for the reduction of rare earth oxides to rare earth metals

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The invention relates to a process for reducing rare earth oxides to rare earth metals (34), which comprises the following steps : iodination of a rare earth oxide to form a rare earth diiodide, heating of the rare earth diiodide above a melting point to form a rare earth diiodide melt (21), electrolysis of the rare earth diiodide melt (21) with deposition of the rare earth metal (34) at an electrode (23).