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PHASE EQUILIBRIA STUDIES IN THE SLAG SYSTEM TiO 2-CaO-MgO − Al 2 O 3-SiO 2 AT CARBON SATURATION
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhao, Baojun Jak, Evgueni Hayes, Peter C. |
| Copyright Year | 2009 |
| Abstract | In the present laboratory-based study research methodologies have been developed that enable phase equilibria and liquidus temperatures to be measured in complex slag systems. These techniques have been employed to produce a series of phase diagrams describing liquidus temperatures at selected sections in the system "TiO2"-(CaO-MgO)-(Al2O3-SiO2) at fixed (CaO/MgO) and (Al2O3 /SiO2) ratios at carbon saturation. With addition of "TiO2" to normal iron blast furnace CaO-MgO-SiO2-Al2O3 slag the liquidus temperatures and primary phase fields in the quinary system are markedly different from the system CaO-MgO-SiO2-Al2O3. Two new phases perovskite CaO·TiO2 and pseudobrookite [2(Ti,Mg,Al)·TiO5)] are formed in the quinary system. The liquidus temperature is shown to be dependent on the (CaO+MgO)/(SiO2+Al2O3), MgO/CaO and Al2O3/ SiO2 ratios and "TiO2" concentration. Limited addition of "TiO2" decreases liquidus temperatures of the slag and stability of the Ca2SiO4 phase. The liquidus temperatures of the iron blast furnace titaniferrous slags can be significantly decreased with increasing |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.pyrometallurgy.co.za/MoltenSlags2009/0071-Zhao.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
