XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2971
cell. Each of the tested technologies have a different range
of operation for reagent dosage, Jg and froth level. The ref-
erence tests are to show that the CPF cell with its own con-
ditions is able to achieve higher performance with twice the
F80 once compared to the GTK cell.
The new CPF technology was able to reject 41–43%
of the mass that fed the circuit as final tailings in a single
stage of flotation, achieving overall Cu recovery 5 points
percentage higher than the conventional flotation with a
D80 twice what is feeding the conventional flotation. The
Table 2. Repeatability results achieved with Metso’s new coarse particle flotation technology
RunOrder
Collector
(g/t)
Frother
(ppm)
Froth
Level
(mm)
Jg
(cm/s)
%Mass of feed
to final tailings
Cu Recovery
Overall%
Cu Recorery
+150µm %
Cu Recovery
–150µm %
6 40 40 250 2 56,7 82,4 72,5 89,4
9 40 40 250 2 56,8 84,3 73,0 92,7
10 40 40 400 2 43,5 89,0 81,1 94,5
11 40 40 400 2 41,1 89,6 81,9 94,8
Figure 9. Summary results: Cu recovery vs Mass Rejection
Table 3. Summary results: GTK
RunOrder D80 (µm) Collector Dosage (g/t) Frother (ppm) Mass Pull%
Cu Recovery
Overall%
Ref Test 01 193 24 19 13,4 85,9
Ref Test 02 193 24 19 8,3 83,4
cell. Each of the tested technologies have a different range
of operation for reagent dosage, Jg and froth level. The ref-
erence tests are to show that the CPF cell with its own con-
ditions is able to achieve higher performance with twice the
F80 once compared to the GTK cell.
The new CPF technology was able to reject 41–43%
of the mass that fed the circuit as final tailings in a single
stage of flotation, achieving overall Cu recovery 5 points
percentage higher than the conventional flotation with a
D80 twice what is feeding the conventional flotation. The
Table 2. Repeatability results achieved with Metso’s new coarse particle flotation technology
RunOrder
Collector
(g/t)
Frother
(ppm)
Froth
Level
(mm)
Jg
(cm/s)
%Mass of feed
to final tailings
Cu Recovery
Overall%
Cu Recorery
+150µm %
Cu Recovery
–150µm %
6 40 40 250 2 56,7 82,4 72,5 89,4
9 40 40 250 2 56,8 84,3 73,0 92,7
10 40 40 400 2 43,5 89,0 81,1 94,5
11 40 40 400 2 41,1 89,6 81,9 94,8
Figure 9. Summary results: Cu recovery vs Mass Rejection
Table 3. Summary results: GTK
RunOrder D80 (µm) Collector Dosage (g/t) Frother (ppm) Mass Pull%
Cu Recovery
Overall%
Ref Test 01 193 24 19 13,4 85,9
Ref Test 02 193 24 19 8,3 83,4