It is well understood that the efficient recovery of values by pyrometallurgical processing of ores requires control of the slag chemistry. In an effort to improve the understanding of slags, a thermodynamic database on subsystems of the CaO-MgO-Fe-O-Al2O3-SiO2 system has been generated through critical assessment of the literature. Data for connecting systems of specific industrial interest are being added. The data can be combined using well-established thermodynamic principles to make calculations on the multicomponent systems of practical interest. Following a description of the calculations, this article illustrates specific applications of thermodynamic modeling to the extraction of copper, nickel, and precious metals; zinc extraction; purification of pig iron; meltdown in nuclear reactors; hot corrosion; and pollution control.
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Barry, T.I., Dinsdale, A.T. & Gisby, J.A. Predictive thermochemistry and phase equilibria of slags. JOM 45, 32–38 (1993). https://doi.org/10.1007/BF03223284
- Gibbs Energy
- Liquid Iron
- Excess Gibbs Energy
- National Physical Laboratory