Ferrosilicon is produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron or millscale. Ferrosilicons with silicon content up to about 15% ar...
DESCRIPTION
Ferrosilicon is produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron or millscale. Ferrosilicons with silicon content up to about 15% are made in blast furnaces lined with acid fire bricks.
Ferro silicon
|
Chemical composition(%)
|
||||
Si
|
Mn
|
C
|
P
|
S
|
|
FeSi75
|
74.0-80.0
|
≤0.4
|
≤0.1
|
≤0.035
|
≤0.02
|
FeSi72
|
72.0-80.0
|
≤0.4
|
≤0.1
|
≤0.04
|
≤0.02
|
FeSi70
|
70.0-80.0
|
≤0.5
|
≤0.2
|
≤0.04
|
≤0.02
|
FeSi65
|
65.0-72.0
|
≤0.6
|
≤0.2
|
≤0.04
|
≤0.02
|
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