XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3641
The challenge here is how to achieve more selectivity by
using GSA to identify where to focus ones efforts.
A different strategy is to change the design or opera-
tional conditions that affect all recoveries. For example,
Figure 4 shows that residence time can affect recoveries for
all species. So, if we look at Figure 3 (top left), we can con-
sider increasing the recoveries of all species in stage C11
(e.g., residence time). This would increase the recovery of
Cp, although it will also increase those of Ga and Py in
the Cu circuit. To compensate for these increases, all recov-
eries in stage C12 can be reduced, which will only affect
the recoveries of Ga and Py. On the other hand, in the Ga
circuit, we can consider increasing the recoveries in the R2
stage (which significantly affects the recovery of Ga) and
Figure 3. Sobol’ index for the global recoveries in the Cp circuit (top left), Ga circuit (top right), and Sp circuit (bottom
left). R1, R2 and R3 represents the rougher stage recovery in Cp, Ga, and Sp circuit. S2 and S3 represents the scavenger stage
recovery in Ga and Sp circuit. C1, C2, and C3 represents the cleaner stage recovery in Cp. Ga, and Sp circuit, being C11 the
first cleaner in the Cp circuit
0
10
20
30
40
50
60
70
0.00 0.05 0.10 0.15 0.20 0.25 0.30
Residence g415me, h
Pb Zn Cu Fe
0
20
40
60
80
100
0.00 0.10 0.20 0.30
Residence g415me, h
Pb Zn Cu Py
Figure 4. Experimental curves of the recovery of Cu, Pb, Zn and Fe at different conditions. Graphics above are rougher (left),
scavenger (right) stages (data from Calisaya et al., 2016)
Recovery,
%Recovery,
%
The challenge here is how to achieve more selectivity by
using GSA to identify where to focus ones efforts.
A different strategy is to change the design or opera-
tional conditions that affect all recoveries. For example,
Figure 4 shows that residence time can affect recoveries for
all species. So, if we look at Figure 3 (top left), we can con-
sider increasing the recoveries of all species in stage C11
(e.g., residence time). This would increase the recovery of
Cp, although it will also increase those of Ga and Py in
the Cu circuit. To compensate for these increases, all recov-
eries in stage C12 can be reduced, which will only affect
the recoveries of Ga and Py. On the other hand, in the Ga
circuit, we can consider increasing the recoveries in the R2
stage (which significantly affects the recovery of Ga) and
Figure 3. Sobol’ index for the global recoveries in the Cp circuit (top left), Ga circuit (top right), and Sp circuit (bottom
left). R1, R2 and R3 represents the rougher stage recovery in Cp, Ga, and Sp circuit. S2 and S3 represents the scavenger stage
recovery in Ga and Sp circuit. C1, C2, and C3 represents the cleaner stage recovery in Cp. Ga, and Sp circuit, being C11 the
first cleaner in the Cp circuit
0
10
20
30
40
50
60
70
0.00 0.05 0.10 0.15 0.20 0.25 0.30
Residence g415me, h
Pb Zn Cu Fe
0
20
40
60
80
100
0.00 0.10 0.20 0.30
Residence g415me, h
Pb Zn Cu Py
Figure 4. Experimental curves of the recovery of Cu, Pb, Zn and Fe at different conditions. Graphics above are rougher (left),
scavenger (right) stages (data from Calisaya et al., 2016)
Recovery,
%Recovery,
%