601 Figure 39 presents the NovaCell™ copper recoveries for the ROM ore bodies. The plot shows the ore feed size vs copper recovery for the bulk, coarse and fine size fractions. The bulk recovery is shown by the line graph. The contributions of coarse and fine size fractions is represented by the green and blue bar graphs, respectively. The NovaCell™ results indicate bulk copper recoveries ranging from 87% to 94%, with contributions from both the coarse and fine size fractions. The fluidized bed targets coarse particle recovery, with recovery contributions ranging from 23% to 45%. The downcomers target finer particle recovery, with recovery contributions between 48% and 67%. It’s typical that the finer size fractions provide a larger contribution, as these fractions generally have a higher copper distribution even at coarse flotation feed grind sizes. Overall, the results confirm that the NovaCell™ can recover valuable copper minerals across all size fractions for a range of ore bodies. Figure 39 – NovaCellTM copper recovery contributions by size Error! Reference source not found. presents the NovaCell copper enrichment ratios for the ROM o re bodies. The plot indicates the relative copper recoveries vs enrichment ratios for the bulk (black dots), coarse (green dots) and fine (blue dots) size fractions. Enrichment ratio (product grade ÷ feed grade) is a standard metric for flotation performance (Wills & Napier-Munn, 2006). For rougher flotation stages, typical enrichment ratios are reported to range approximately from 4 to 10, depending on ore type and circuit conditions.
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