“…Among the proposed methods, leaching [2][3][4], electro-oxidation [5][6][7][8][9][10], bioleaching [11][12][13], and chlorination [14,15], appear to be potential routes for treating molybdenite concentrates. However, another concept for extraction of metals from their sulfides is their direct reduction in the presence of a suitable metal oxide with desulfurizing capability [16][17][18][19][20][21][22][23]. This general scheme, for reduction of molybdenum sulfide with lime as the desulfating metal oxide [16][17][18][19] can be represented by the following reactions:…”