Conversion of Mill Scale Waste into Valuable Products via Carbothermic Reduction

Figure 9

Variation of (a) sulphur content and (b) desulfurization degree of the metal, using 500 gm of CaO-CaF₂ (4 : 1) in the furnace with adding 250 gm of different fluxing type in the mold, (1) zero, (2) CaO + CaF₂ + FeSi-C, and (3) CaO + CaF₂ (4) CaSi.

(a)

(b)