Table 1: Chemical composition of iron and steel slag (wt. %) [63].
Furnace Type | CaO | SiO2 | Al2O3 | MgO | MnO | TiO2 | FeO | P2O5 | Cr2O3 | Fe2O3 |
BFS | 30-56 | 28-38 | 8-24 | 1-18 | 0.5-2 | na | 0.5-1 | na | na | na |
BOFS | 30-55 | 8-20 | 1-6 | 5-15 | 2-8 | 0.4-2 | 10-35 | ≤ 2 | ≤ 0.73 | na |
EAFS | 30-50 | 11-20 | 10-18 | 8-13 | 5-10 | na | 8-22 | 2-5 | na | 5-6 |
LFS | 30-60 | 2-35 | 5-35 | 1-10 | 0-5 | na | 0.1-1.5 | ≤ 0.9 | ≤ 0.73 | na |