XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2885
by that same association. To increase grade and recovery
within HGT and LGT, it would be necessary to investigate
even finer grinding than currently applied.
Comparison to Mechanical Cells
The first recleaner cell produces a concentrate of 55,9%
Cu and the second recleaner cell produces a concentrate
of 37,8%. It was expected that the test work with the
Concorde Cell produces equivalent or approaching grades
on the tailings of these recleaner cells. As exemplified in the
previous paragraph, there are constraints given the mineral-
ogy of the tailings, as the recleaner cell most likely already
captured some of the “best” particles. Chemistry certainly
plays a role as well but was not investigated during this test
work. However, benchmarks to mechanical cells were con-
ducted in order to determine if a different hardware would
0
5
10
15
20
25
30
35
40
45
50
0 1 2 3 4 5
Number of cycles
HGT
2 4
0
5
10
15
20
25
30
0 1 2 3 4 5
Number of cycles
LGT
3 4
Figure 10. Copper recovery depending on the number of cycles for HGT and LGT tests with (HGT-4 and
LGT-4) and without froth washing (HGT-2 and LGT-3)
0
5
10
15
20
25
30
35
40
45
50
0 1 2 3 4 5 6 7 8
Si recovery, %
HGT
2 4
0
5
10
15
20
25
30
0 1 2 3 4 5 6 7 8
Si recovery, %
LGT
3 4
Figure 11. Copper – silica recovery for HGT and LGT tests with (HGT-4 and LGT-4) and without froth
washing (HGT-2 and LGT-3)
Cu
r
overy,
%
Cu
r
overy,
%
Cu
r
overy,
%
Cu
r
overy,
%