journal article·2022-03

Thermodynamic modeling of CaO-SiO2-VOx system by the generalized central atom model

Yang He, Chunlin Chen, Jean Lehmann

Calphad· Volume 76
Publisher page

Abstract

Abstract With the aim of modeling the vanadium partitioning behavior in iron and steelmaking process, the steelmaking slags model/database was extended for covering the vanadium. In this paper, the binary CaO-VOx, SiO2-VOx and ternary CaO-SiO2-VOx systems were assessed and optimized based upon available phase equilibrium and thermodynamic data. The Generalized Central Atom (GCA) Model was used for describing the liquid slag phase while all intermediate vanadium containing solid phases are treated as stoichiometric compounds. During the optimization, effort was focused on the slag liquidus and its primary solid phases. The obtained model parameters can represent the reliable experimental data reasonably well. The sub-solidus regions at low temperature are not well assessed.
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Research context

OpenAlex topics: Metallurgical Processes and Thermodynamics · Metal Extraction and Bioleaching · Iron and Steelmaking Processes

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References (35)

Show source-provided references
1. Processing of vanadium: a review10.1016/S0892-6875(03)00213-9 ↗
2. The extraction of vanadium from titanomagnetites and other sources10.1016/j.mineng.2019.106106 ↗
3. Thermodynamic analysis of ordered liquid solutions by a modified quasichemical approach—application to silicate slags10.1007/BF02657144 ↗
4. A two-sublattice model for molten solutions with different tendency of ionization10.1007/BF02816052 ↗
5. Thermodynamic modelling of oxide glasses10.1111/j.1151-2916.2002.tb00552.x ↗
6. Critical evaluation and thermodynamic optimization of the VO–VO2.5 system10.1016/j.jeurceramsoc.2012.04.045 ↗
7. Critical evaluation and thermodynamic optimization of the V-O system10.1016/j.calphad.2015.10.003 ↗
8. Critical evaluation and thermodynamic assessment of the MgO-V2O5 and CaO-V2O5 systems in air10.1016/j.calphad.2016.12.001 ↗
9. Critical evaluation and thermodynamic modeling of the Fe-V-O (FeO-Fe2O3-VO-V2O3-VO2-V2O5) system10.1016/j.calphad.2019.101682 ↗
10. Thermodynamic assessment of the Fe-V-O system10.1016/j.calphad.2020.102213 ↗
11. Phase equilibria and thermodynamic evaluation of the Ti-V-O system in air10.1016/j.calphad.2018.10.006 ↗
12. Phase equilibria and thermodynamic evaluation of the Fe-Ti-V-O system in air10.1016/j.calphad.2019.02.014 ↗
13. Phase diagrams and thermodynamic properties of the FeO-SiO2-V2O3 system10.1002/srin.201600324 ↗
14. Thermodynamic assessment of the V-O system10.1016/j.calphad.2015.08.003 ↗
15. An assessment of the Ca-V-O system10.1016/j.calphad.2016.11.005 ↗
16. Addition of V2O5 and V2O3 to the CaO-FeO-Fe2O3-MgO-SiO2 database for vanadium distribution and viscosity calculations10.1016/j.calphad.2021.102284 ↗
17. Thermodynamic description of liquid steel and metallurgical slags by the generalized central atom model
18. Application of ArcelorMittal Maizières thermodynamic models to liquid steel elaboration10.1051/metal:2008070 ↗
19. Modelling of the thermodynamic properties of complex metallurgical slags
20. A review of Vanadium redox reactions in melts
21. Oxidation-reduction equilibria of vanadium in CaO-SiO2, CaO-Al2O3-SiO2 and CaO-MgO-SiO2 melts10.1023/A:1023588010572 ↗
22. Equilibrium slag losses in ferrovanadium production10.1007/s11663-000-0084-1 ↗
23. Thermodynamic & phase diagram data for the CaO-SiO2 system10.1016/0364-5916(90)90041-W ↗
24. Roth · 1995 · ume XI · 285
25. An investigation of the system V2O5-SiO2
26. Laboratory Research of SiO2-V2O5 binary system phase diagram
27. Phase equilibria of the SiO2–V2O5 system10.1016/j.ceramint.2020.06.183 ↗
28. Muan · 1991
29. Investigation of the CaO-V2O5 system
30. Thermal analysis of vanadium pentoxide-calcium metavanadate
31. Investigations in the system lime oxide-vanadium pentoxide
32. Najjar · 1990
33. Vanadium oxide solubility in CaO-SiO2-VOx system10.1080/03019233.2016.1155841 ↗
34. Thermodynamics of the CaO-SiO2-VOx system at 1873 K under the oxygen partial pressure of 6.9×10-11 atm10.1111/jace.15016 ↗
35. Effects of oxygen partial pressure on the thermodynamics of CaO-SiO2-VOx system at 1873 K10.1111/jace.16833 ↗