2930 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
PGMs, indicating that the peak in performance occurred at
longer preconditioning times.
As shown by the differential mass pull-recovery and
grade-recovery profiles in Figures 6 and 7, under the
-30
-20
-10
0
10
20
30
-10 0 10 20 30
Mass pull diff. (%)
0 Pass 5 pass 10 pass 15 pass
Figure 4. Mass pull -recovery differential profiles for the Rougher Scavenger feed
(reference point at 10 minutes)
-15
-5
5
15
25
35
-50 -40 -30 -20 -10 0 10 20 30
4E Recovery diff. (%)
0 Pass 5 pass 10 Pass 15 Pass
Figure 5. Grade-recovery differential profiles for the Rougher Scavenger feed
baseline conditions (0-pass test) a final 4E recovery exceed-
ing those of the other tests was produced, this being the
result of a high mass pull and final concentrate assay. The
final recoveries of the three Mach tests are grouped tightly
4E
Recovery
d
iff .
(%)
4E
Grade
d
.
(g/t)