Brownmillerite(Mg,Si-exchanged)
BrownmilleriteHatrurit
Hatrurite Brownmillerite(Mg,Si-exchanged)
Brownmi
te
Hatrurit
Brownmillerite(Mg,Si-exchanged)
Hatrurit
Hatrurite
Hatrurite
Brownmillerite(Mg,Si-exchanged) Brownmillerite(Mg,Si-exchanged)
te
g,
ed)
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
Brownmillerite
(Mg,Si-exchanged)
Brownmillerite
Brownm
illerit e
(Mg,Si-exchanged)
Brownmillerite
Wuestite
Brownmillerite
Brownmillerite
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
Brownmillerite(Mg,Si-exchanged) Brownmillerite(Mg,Si-exchanged)
Brownmillerite Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownmillerite Brownmillerite(Mg,Si-exchang
ed )Brownmillerite(Mg,Si-exchang
ed )Brownmillerite(Mg,Si-exchanged)
Brownmillerite
WuestiteBrownm
illerit e
(Mg,Si-exchanged)
Brownmillerite
Brownmillerite
Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownm
illerit e
(Mg,Si-exchang
ed )
Brownmillerite
WuestiteBrownm
illerit e
(Mg,Si
ed)
Brownmillerite
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 521
process. In that case, the iron magnesium oxide, iron metal,
and wustite phases can be separated as magnetics in the
magnetic separation. However, further grinding is required
to below 75µm for the effective liberation of these locked
phases and subsequently helpful for the separation. Further,
the phosphorous deportment in the BOF slag was analysed
earlier (Tripathy et al., 2021).
The magnetic property of the BOF slag sample was
measured in a Vibratory Sample Magnetometer (VSM),
and the result is shown in Figure 6. From Figure 6, it is
evident that the magnetic property of the slag is very high,
and the saturation magnetization value at 3 T is 3.1 emu/g.
So, magnetic separation can be used for the treatment of
this material with a proper understanding of the liberation
pattern of the different phases in BOF slag.
Figure 3. Results of sink and float analysis
Position [°2Theta] (Copper (Cu))
20 30 40 50 60 70 80
Counts
0
200
400
~0433156
Figure 4. XRD patterns for BOF slag with identified phases
BrownmilleriteHatrurit
Hatrurite Brownmillerite(Mg,Si-exchanged)
Brownmi
te
Hatrurit
Brownmillerite(Mg,Si-exchanged)
Hatrurit
Hatrurite
Hatrurite
Brownmillerite(Mg,Si-exchanged) Brownmillerite(Mg,Si-exchanged)
te
g,
ed)
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
Brownmillerite
(Mg,Si-exchanged)
Brownmillerite
Brownm
illerit e
(Mg,Si-exchanged)
Brownmillerite
Wuestite
Brownmillerite
Brownmillerite
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
Brownmillerite(Mg,Si-exchanged) Brownmillerite(Mg,Si-exchanged)
Brownmillerite Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownmillerite Brownmillerite(Mg,Si-exchang
ed )Brownmillerite(Mg,Si-exchang
ed )Brownmillerite(Mg,Si-exchanged)
Brownmillerite
WuestiteBrownm
illerit e
(Mg,Si-exchanged)
Brownmillerite
Brownmillerite
Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownmillerite(Mg,Si-exchanged)
Brownmillerite
Brownm
illerit e
(Mg,Si-exchang
ed )
Brownmillerite
WuestiteBrownm
illerit e
(Mg,Si
ed)
Brownmillerite
Brownmillerite(Mg,Si-exchang
ed )
Brownmillerite
XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 521
process. In that case, the iron magnesium oxide, iron metal,
and wustite phases can be separated as magnetics in the
magnetic separation. However, further grinding is required
to below 75µm for the effective liberation of these locked
phases and subsequently helpful for the separation. Further,
the phosphorous deportment in the BOF slag was analysed
earlier (Tripathy et al., 2021).
The magnetic property of the BOF slag sample was
measured in a Vibratory Sample Magnetometer (VSM),
and the result is shown in Figure 6. From Figure 6, it is
evident that the magnetic property of the slag is very high,
and the saturation magnetization value at 3 T is 3.1 emu/g.
So, magnetic separation can be used for the treatment of
this material with a proper understanding of the liberation
pattern of the different phases in BOF slag.
Figure 3. Results of sink and float analysis
Position [°2Theta] (Copper (Cu))
20 30 40 50 60 70 80
Counts
0
200
400
~0433156
Figure 4. XRD patterns for BOF slag with identified phases