Conversion of Mill Scale Waste into Valuable Products via Carbothermic Reduction

Figure 8

Variation of (a) sulphur content and (b) desulfurization degree of the metal using 250 gm of CaO-CaF₂ (4 : 1) in the furnace and adding 250 gm of different types of flux in the mold: (1) CaO + CaF₂, (2) Na₂CO₃, (3) CaO + CaF₂ + Al₂O₃, (4) CaO + CaF₂ + FeSi + C, and (5) CaSi.

(a)

(b)