Table 6 Element composition of slags and approximate gas phase fraction of S- 3
Item | S- 3 | S- 5 | S- 7 | ||||
|---|---|---|---|---|---|---|---|
Average (g kg−1) | RSD (%) | Approximate gas phase fraction (%) | Average (g kg−1) | RSD (%) | Average (g kg−1) | RSD (%) | |
Al | 7.6 | 5.8 | 13.7 | 8.9 | 18.9 | 5.4 | 8.0 |
Ca | 18.8 | 2.5 | 5.0 | 16.7 | 7.73 | 12.6 | 11.4 |
Cd | N.D | N.A | > 99.9 | N.D | N.A | N.D | N.A |
Co | 0.3 | 5.8 | 14.1 | 0.4 | 4.79 | 0.2 | 7.1 |
Cr | 2.5 | 6.0 | 4.1 | 4.4 | 3.11 | 1.6 | 7.7 |
Cu | 8.6 | 2.1 | 5.8 | 11.8 | 5.52 | 6.0 | 5.3 |
Fe | 18.8 | 6.9 | 7.2 | 26.3 | 6.18 | 16.5 | 5.5 |
K | 2.0 | 4.4 | 24.7 | 2.5 | 9.8 | 1.5 | 1.4 |
Mg | 4.8 | 4.2 | 6.8 | 2.9 | 1.75 | 4.0 | 13.3 |
Mn | 0.8 | 4.4 | 22.4 | 0.9 | 7.25 | 0.5 | 7.3 |
Na | 12.4 | 15.2 | 33.9 | 19.2 | 10.3 | 16.7 | 8.7 |
Ni | 2.0 | 2.4 | 6.6 | 2.7 | 2.81 | 1.6 | 5.8 |
Pb | N.D | N.A | > 99.9 | N.D | N.A | N.D | N.A |
Si | 84.7 | 9.0 | 8.2 | 42.7 | 12.1 | 108 | 10.8 |
Zn | 0.05 | 2.5 | 94.8 | 0.04 | 2.2 | 0.02 | 7.4 |
Cl− | 0.5 | - | 89.0 | 0.4 | 8.5 | 0.5 | 9.2 |
Basicity | 0.19 | – | – | 0.20 | – | 0.17 | – |