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Figure 6:
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Figure 6:
Approximate relative costs of a 100,000 t/day copper concentrator [10]_
| Item | Cost (%) |
|---|---|
| Crushing | 2.8 |
| Grinding | 47.0 |
| Flotation | 16.2 |
| Thickening | 3.5 |
| Filtration | 2.8 |
| Tailings | 5.1 |
| Reagents | 0.5 |
| Pipeline | 1.4 |
| Water | 8.0 |
| Laboratory | 1.5 |
| Maintenance support | 0.8 |
| Management support | 1.6 |
| Administration | 0.6 |
| Other expenses | 8.1 |
| Total | 100 |
Results of sieve test_
| Aperture size (μm) | Size interval (μm) | Sieve mass (g) | Cumulative pass (g) | Cumulative pass (%) | Cumulative oversize (%) |
|---|---|---|---|---|---|
| 2,000 | +2,000 | 13 | 2.81 | 97.19 | 2.81 |
| 1,000 | 1,000–2,000 | 4 | 0.86 | 96.33 | 3.67 |
| 500 | 500–1,000 | 11 | 2.38 | 93.95 | 6.05 |
| 250 | 250–500 | 143 | 30.89 | 63.06 | 36.94 |
| 125 | 125–250 | 193 | 41.68 | 21.38 | 78.62 |
| 71 | 71–125 | 54 | 11.66 | 9.72 | 90.28 |
| 32 | 32–71 | 24 | 5.18 | 4.54 | 95.46 |
| 0 | 0–32 | 21 | 4.54 | 0.00 | 100.00 |