2194 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
it indicates, the Fe cations are detrimental to the pentland-
ite flotation performance, and the Fe cations should be
eliminated.
The influence of NiCl2 with different molar concen-
trations on the microflotation of mineral samples is dis-
played in Figure 9. As can be seen Figure 9 (a), when the
added NiCl2 concentration is 0.001 and 0.01 mol/L, the
microflotation of pentlandite is carried out successfully,
and cumulative recoveries of microflotation of pentlandite
and lizardite samples under two experimental conditions
are quite similar. Under these experimental conditions, the
selectivity indexes are the same. When the NiCl2 molar
concentration is 0.1 and/or 1 mol/L, none of the pent-
landite concentrate is collected, while there is still a small
amount of lizardite that can be collected. Based on previ-
ous research work, oxidised nickel sulfides produce soluble
0 2 4 6 8 10
0
10
20
30
40
50
60
70
80
90
Time (min)
Influence of FeCl2 (mol/L)
Pentlandite Lizardite
0.001
0.01
0.1
1
(a)
0 2 4 6 8 10
0
10
20
30
40
50
Time (min)
FeCl2 molar concentration
0.001
0.01
0.1
1
(b)
Figure 8. (a) The influence of FeCl
2 with different concentrations on the microflotation of mineral samples (b) The selectivity
indexes generated under the same experimental conditions. The error bar stands for a standard error of the mean of two
independent runs
0 2 4 6 8 10
0
10
20
30
40
50
60
70
80
90
Time (min)
Influence of NiCl
2 (mol/L)
Lizardite Pentlandite
0.001
0.01
0.1
1
(a)
0 2 4 6 8 10
0
10
20
30
40
50
Time (min)
NiCl2 molar concentration (mol/L)
0.001
0.01
(b)
Figure 9. (a) The influence of NiCl
2 with different molar concentrations on the microflotation of mineral samples (b) The
selectivity indexes generated under the same experimental conditions. The error bar stands for a standard error of the mean of
two independent runs
Cumulative
Recovery
(%)
Selectivity
Index
Cumulative
Recovery
(%)
Selectivity
Index
it indicates, the Fe cations are detrimental to the pentland-
ite flotation performance, and the Fe cations should be
eliminated.
The influence of NiCl2 with different molar concen-
trations on the microflotation of mineral samples is dis-
played in Figure 9. As can be seen Figure 9 (a), when the
added NiCl2 concentration is 0.001 and 0.01 mol/L, the
microflotation of pentlandite is carried out successfully,
and cumulative recoveries of microflotation of pentlandite
and lizardite samples under two experimental conditions
are quite similar. Under these experimental conditions, the
selectivity indexes are the same. When the NiCl2 molar
concentration is 0.1 and/or 1 mol/L, none of the pent-
landite concentrate is collected, while there is still a small
amount of lizardite that can be collected. Based on previ-
ous research work, oxidised nickel sulfides produce soluble
0 2 4 6 8 10
0
10
20
30
40
50
60
70
80
90
Time (min)
Influence of FeCl2 (mol/L)
Pentlandite Lizardite
0.001
0.01
0.1
1
(a)
0 2 4 6 8 10
0
10
20
30
40
50
Time (min)
FeCl2 molar concentration
0.001
0.01
0.1
1
(b)
Figure 8. (a) The influence of FeCl
2 with different concentrations on the microflotation of mineral samples (b) The selectivity
indexes generated under the same experimental conditions. The error bar stands for a standard error of the mean of two
independent runs
0 2 4 6 8 10
0
10
20
30
40
50
60
70
80
90
Time (min)
Influence of NiCl
2 (mol/L)
Lizardite Pentlandite
0.001
0.01
0.1
1
(a)
0 2 4 6 8 10
0
10
20
30
40
50
Time (min)
NiCl2 molar concentration (mol/L)
0.001
0.01
(b)
Figure 9. (a) The influence of NiCl
2 with different molar concentrations on the microflotation of mineral samples (b) The
selectivity indexes generated under the same experimental conditions. The error bar stands for a standard error of the mean of
two independent runs
Cumulative
Recovery
(%)
Selectivity
Index
Cumulative
Recovery
(%)
Selectivity
Index