XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 1845
0 10 20 30 40 50 60 70 80 90
(a)
30min
25min
20min
15min
12.5min
10min
7.5min
5min
2.5min
SiO2
Fe FeO
Fe
3
O
4
22 23 24 25 26
Fe2SiO4 (b)
35 36 37 38
W M
(c)
41 42 43 44
W-Wuestite
W
(d)
Figure 6. XRD patterns of roasted material at different reduction time. (a) General patterns. (b)~(d) Partial enlargement
patterns
0 10 20 30 40 50 60 70 80 90
SiO
2
Fe FeO
90%
80%
70%
60%
50%
40%
30%
20%
10%
(a)
23 24 25 26
Fe2SiO4 (b)
41 42 43 44
W
(c)
35 36 37 38
M
W
(d)
Figure 7. XRD patterns of roasted material at different H
2 concentration. (a) General patterns. (b)~(d) Partial enlargement
patterns
I
ensity
I
ensity