844
H. B. Wang et al.
d=3.8709
d=3.6714
d=3.4905
d=3.2939
d=3.1808
d=3.1109
d=3.0379
d=3.0018
d=2.8484
d=2.7994
d=2.7781
d=2.7278
d=2.6930
d=2.5902
d=2.5127
d=2.4677
d=2.3269
d=2.2850
d=2.2026
d=2.1829
d=2.1402
d=2.0843
d=1.9936
d=1.9375
d=1.8689
d=1.8531
d=1.8379
d=1.7460
d=1.6916
d=1.6473
d=1.6076
d=1.5963
d=1.5641
d=1.5236
d=1.4908
d=1.4840
d=1.4516
d=1.3480
d=1.3446
d=1.3156
d=1.3093
d=1.2779
d=1.2736
d=1.2575
d=1.2393
d=1.2261
d=1.1878
d=1.1615
d=1.1397
d=1.1075
d=1.1020
10
20
30
40
50
60
70
80
90
Two-Theta (deg)
0
500
1000
1500
2000
2500
3000
3500
Intensity(Counts)
[YW-160415-3.raw]
Fig. 7 Slag phase analysis
the experiment, a magnet was used for the test, it was observed that the magnetism
was remarkable, and the slag was recovered by magnetic separation or the like.
Conclusion
According to the above test, the addition amount of chlorinating agent, pulverized
coal, and temperature influences the metal volatilization rate. The addition of chlorinating agent can increase the volatilization rate of lead, zinc, copper, silver, and
indium, and the addition of pulverized coal can further improve the metal recovery rate. Considering the chlorination recovery of the same process in a variety of
metals, the optimum process conditions are 24% calcium chloride, 3% pulverized
coal, 73% jarosite residue, roasting temperature of 1100 °C, and roasting time of 2 h.
The volatilization rate of zinc, lead, copper, indium, and silver are 98.26%, 99.88%,
97.32%, 58.73%, and 95.22%, respectively.
Acknowledgements This work was supported by National Key Research and Development Plan
of China (2018YFC1900401) and National Natural Science Foundation of China (51434001).
H. B. Wang et al.
d=3.8709
d=3.6714
d=3.4905
d=3.2939
d=3.1808
d=3.1109
d=3.0379
d=3.0018
d=2.8484
d=2.7994
d=2.7781
d=2.7278
d=2.6930
d=2.5902
d=2.5127
d=2.4677
d=2.3269
d=2.2850
d=2.2026
d=2.1829
d=2.1402
d=2.0843
d=1.9936
d=1.9375
d=1.8689
d=1.8531
d=1.8379
d=1.7460
d=1.6916
d=1.6473
d=1.6076
d=1.5963
d=1.5641
d=1.5236
d=1.4908
d=1.4840
d=1.4516
d=1.3480
d=1.3446
d=1.3156
d=1.3093
d=1.2779
d=1.2736
d=1.2575
d=1.2393
d=1.2261
d=1.1878
d=1.1615
d=1.1397
d=1.1075
d=1.1020
10
20
30
40
50
60
70
80
90
Two-Theta (deg)
0
500
1000
1500
2000
2500
3000
3500
Intensity(Counts)
[YW-160415-3.raw]
Fig. 7 Slag phase analysis
the experiment, a magnet was used for the test, it was observed that the magnetism
was remarkable, and the slag was recovered by magnetic separation or the like.
Conclusion
According to the above test, the addition amount of chlorinating agent, pulverized
coal, and temperature influences the metal volatilization rate. The addition of chlorinating agent can increase the volatilization rate of lead, zinc, copper, silver, and
indium, and the addition of pulverized coal can further improve the metal recovery rate. Considering the chlorination recovery of the same process in a variety of
metals, the optimum process conditions are 24% calcium chloride, 3% pulverized
coal, 73% jarosite residue, roasting temperature of 1100 °C, and roasting time of 2 h.
The volatilization rate of zinc, lead, copper, indium, and silver are 98.26%, 99.88%,
97.32%, 58.73%, and 95.22%, respectively.
Acknowledgements This work was supported by National Key Research and Development Plan
of China (2018YFC1900401) and National Natural Science Foundation of China (51434001).