Grinding condition (medium) | Extracted Fe (ppm) | Galena recovery (%) |
Mild steel | 5 | 59 |
Cast iron | 2.4 | 62.35 |
10% chromium | 1 | 65.93 |
20% chromium | 0.5 | 70.34 |
Ceramic | N-D | 80.11 |