Figure 6 – Base Case Flotation Circuit Model 3. RESULTS AND DISCUSSION The aim of the integrated Mine-to-Process optimization project at Toromocho was to increase production considering the harder than anticipated feed ore characteristics. To maximize overall production, it is necessary to consider the impact on throughput and recovery performance, and as the grinding product size impacts flotation recovery, this is also an important factor. Drill and blast practices were reviewed and progressively optimized (Fangrong et al., 2023b). Since 2017, the ROM P80 was successfully reduced (from an average of 5.5 to 2.5 inches) and the amount of fines increased (% passing 1 inch increased from ~30% to ~50%) (Figure 7).
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