3128 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
Investigation on Collecting Ability of BK386 and
Other Copper Collectors
To further improve the recovery rate of copper, a new col-
lector, BK386, was developed and used in conjunction with
isobutyl xanthate (SIBX). A comparative study was con-
ducted on the collection capacity and selectivity of BK386
and other copper collectors under identical flotation condi-
tions. The conditions included a feed particle size distri-
bution with 70% passing 74 μm, lime dosage of 300 g/t,
NaSH dosage of 100 g/t, SIBX dosage of 7 g/t, copper col-
lector dosage of 32 g/t, and BK233 dosage of 35 g/t. The
results are shown in Figure 2.
When BK386 is used in combination with SIBX, it
exhibits superior collection performance with the high-
est recoveries of Cu and Mo in concentrate at 89.09%
and 72.08%, respectively. Z200 is one of the most widely
used copper collectors however, compared to Z200, the
utilization of BK386 allows for a lower concentrate yield
50 55 60 65 70 75 80 85
0
1
2
3
4
5
6
7
8
Cu grade
0
20
40
60
80
100
Cu recovery
(a)
50 55 60 65 70 75 80 85
0.00
0.02
0.04
0.06
0.08
0.10
Mo grade
(b)
0
20
40
60
80
100
Mo recovery
Figure 1. Effects of grinding fineness on recoveries and grades of Cu(a) and Mo(b) in rougher concentrates
11.48
7.04
5.47 5.75
75.14
84.32
85.82
89.09
0.065
0.036 0.029 0.029
67.19
70.41 70.91 72.08
PJ053 BK901B Z200 BK386
0.0
0.1
5
10
15
60
70
80
90
100
Cu grade
Cu recovery
Mo grade
Mo recovery
Figure 2. Effects of types of collector on recoveries and grades of Cu and Mo in rougher concentrates
Grade,% Recovery,% Grade,% Recovery,%
Grade
/
recovery,%
Investigation on Collecting Ability of BK386 and
Other Copper Collectors
To further improve the recovery rate of copper, a new col-
lector, BK386, was developed and used in conjunction with
isobutyl xanthate (SIBX). A comparative study was con-
ducted on the collection capacity and selectivity of BK386
and other copper collectors under identical flotation condi-
tions. The conditions included a feed particle size distri-
bution with 70% passing 74 μm, lime dosage of 300 g/t,
NaSH dosage of 100 g/t, SIBX dosage of 7 g/t, copper col-
lector dosage of 32 g/t, and BK233 dosage of 35 g/t. The
results are shown in Figure 2.
When BK386 is used in combination with SIBX, it
exhibits superior collection performance with the high-
est recoveries of Cu and Mo in concentrate at 89.09%
and 72.08%, respectively. Z200 is one of the most widely
used copper collectors however, compared to Z200, the
utilization of BK386 allows for a lower concentrate yield
50 55 60 65 70 75 80 85
0
1
2
3
4
5
6
7
8
Cu grade
0
20
40
60
80
100
Cu recovery
(a)
50 55 60 65 70 75 80 85
0.00
0.02
0.04
0.06
0.08
0.10
Mo grade
(b)
0
20
40
60
80
100
Mo recovery
Figure 1. Effects of grinding fineness on recoveries and grades of Cu(a) and Mo(b) in rougher concentrates
11.48
7.04
5.47 5.75
75.14
84.32
85.82
89.09
0.065
0.036 0.029 0.029
67.19
70.41 70.91 72.08
PJ053 BK901B Z200 BK386
0.0
0.1
5
10
15
60
70
80
90
100
Cu grade
Cu recovery
Mo grade
Mo recovery
Figure 2. Effects of types of collector on recoveries and grades of Cu and Mo in rougher concentrates
Grade,% Recovery,% Grade,% Recovery,%
Grade
/
recovery,%