“…To date, MOE for ironmaking is a laboratory-proven extraction technology ( Fig. 1) [12,16,17], and is foreseen as scalable considering its analogies with molten salt electrolysis, which is used to produce several millions of tonnes of metals such as Al [18,19], Mg [20,21], Li [22,23], Mn [24,25] and rare earth metals [26][27][28][29].…”