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The ore beneficiation process is a hand-selective-heavy medium selection-flotation process (below). The production parameters of the whole process and the flotation conditions used are listed in Tables 1 and 2.
Table 1 Sinan processing plant production targets instance mine /%
Sorting operation
Operating rate
Ore grade
Concentrated concentrate grade
Tailings grade
Recovery rate
Hand selection
33.3
2.25
7.8
0.12
95.95
Heavy medium
6.6
1.58
2.65
0.18
95.11
Flotation
60.1
3.19
47.58
0.21
93.97
Total or average
100.0
2.68
19.44
0.18
94.11
Table 2 Flotation conditions of tin mine south selection plant
Required pulp PH
Flotation drug formulation /g·t -1
Ding Huang Yao
B nitrogen
Shale oil
Lead nitrate
Pine oil
Coal oil
Natural PH
100
70
288
147
119
65
Figure Tin Mine Mine Yanan South Plantation Flowchart