1936 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
of 50% and magnet on position 3. The results are presented
at Table 2. These results confirmed the technical feasibility
of grinding at 150 µm and using LIMS to increase the iron
content in the material. The liberation of gangue, Figure 1,
indicates that further concentration in smaller sizes should
lead to even higher recovery or iron content in the con-
centrate. The removal of the high sulphur content in the
final concentrate, 2,8%, is also a valuable opportunity. So
regrinding, other cleaner stages of magnetic separation and
sulphide flotation are recommended to be investigated.
These results confirmed the technical feasibility of
grinding at 150 µm and using LIMS to increase the iron
content in the material. The liberation of gangue, Figure
1, indicates that further concentration in smaller sizes
should lead to even higher recovery or iron content in the
concentrate. The removal of the high sulfur content in the
final concentrate, 2,8%, is also a valuable opportunity. So
regrinding, other cleaner stages of magnetic separation and
sulfide flotation are recommended to be investigated.
Figure 4. Effect of drum speed at performance, iron amount in the concentrate (Fe) and iron recovery
(RFe), of magnetic separation at different stages, rougher (RG) and cleaner (CL)
62.1
60.5
62.8 62.6
67.2
65.4
65.8 65.9
92.9
89.5
92.5 92.5
94.1
92.1 92.2
95.9
86
88
90
92
94
96
98
56
58
60
62
64
66
68
1 3 5 7 1 3 5 7
RG CL
Fe_c
RFe
Figure 5. Effect of position of the magnet on the performance of the concentration
Metalurgical
recovery
(%)
Iron
content
in
the
concetrate
(%)
of 50% and magnet on position 3. The results are presented
at Table 2. These results confirmed the technical feasibility
of grinding at 150 µm and using LIMS to increase the iron
content in the material. The liberation of gangue, Figure 1,
indicates that further concentration in smaller sizes should
lead to even higher recovery or iron content in the con-
centrate. The removal of the high sulphur content in the
final concentrate, 2,8%, is also a valuable opportunity. So
regrinding, other cleaner stages of magnetic separation and
sulphide flotation are recommended to be investigated.
These results confirmed the technical feasibility of
grinding at 150 µm and using LIMS to increase the iron
content in the material. The liberation of gangue, Figure
1, indicates that further concentration in smaller sizes
should lead to even higher recovery or iron content in the
concentrate. The removal of the high sulfur content in the
final concentrate, 2,8%, is also a valuable opportunity. So
regrinding, other cleaner stages of magnetic separation and
sulfide flotation are recommended to be investigated.
Figure 4. Effect of drum speed at performance, iron amount in the concentrate (Fe) and iron recovery
(RFe), of magnetic separation at different stages, rougher (RG) and cleaner (CL)
62.1
60.5
62.8 62.6
67.2
65.4
65.8 65.9
92.9
89.5
92.5 92.5
94.1
92.1 92.2
95.9
86
88
90
92
94
96
98
56
58
60
62
64
66
68
1 3 5 7 1 3 5 7
RG CL
Fe_c
RFe
Figure 5. Effect of position of the magnet on the performance of the concentration
Metalurgical
recovery
(%)
Iron
content
in
the
concetrate
(%)