A New Innovative Method of Flotation Separation for High Sulfur …
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Fig. 5 Conditional experiments for zinc flotation a Lime doses; b copper sulfate doses, and
c collector doses
Table 1 Closed circuit flotation results of old and new technologies
System
Product
Grade/%
Recovery/%
Pb
Zn
S
Pb
Zn
S
Old
Lead concentrate
60.70
2.57
23.50
83.39
1.49
4.38
Zinc concentrate
0.91
55.19
30.70
3.69
94.52
16.84
Sulfur concentrate
0.45
0.22
47.30
4.44
0.91
62.98
Tailings
0.76
0.66
10.52
8.48
3.08
15.84
Feed
3.78
8.97
28.00
100.00
100.00
100.00
New
Lead concentrate
60.84
2.34
22.00
82.60
1.40
4.30
Zinc concentrate
1.20
56.22
30.46
4.61
95.26
16.85
Sulfur concentrate
0.51
0.25
46.78
4.92
1.07
64.47
Tailings
0.76
0.50
9.67
7.87
2.27
14.37
Feed
3.98
9.04
27.68
100.00
100.00
100.00
and S (46.78%) concentrations were obtained in the new flotation flowsheet with
recovery rates of 82.60%, 95.26%, and 64.47%, respectively. In new system, the
recoveries of primary minerals galena and sphalerite remained as high as that in
HAPP, and pyrite was successfully recovered through reverse flotation in the absence