Oxygen Potential of High-Titania Slag from the Smelting Process of Ilmenite
Source abstract
Abstract
Oxygen potential of TiO2-FeO-Ti2O3 ternary slags was determined by the electromotive force (EMF) method based on the solid electrolyte oxygen sensor at 2003 K (1730 °C). The effect of FeO content and Ti3+/Ti4+ mass ratio on the oxygen potential of the high-titania slag was also studied. At a fixed Ti3+/Ti4+ mass ratio of 3.11, the oxygen potential increased with increasing FeO content. Increase of Ti3+/Ti4+ mass ratio from 2.29 to 3.60 caused a significant decrease in the oxygen potential of the slag. Comparing measured oxygen potential with the calculated values indicated that the oxygen potential of the slag might be determined by FeO/Fe equilibrium reaction rather than TiO2/Ti2O3 reaction. In addition, the experimentally measured oxygen potential values were modeled by multiple linear regression analysis, and a semi-empirical mathematical correlation was established between the oxygen potential and slag compositions. The iso-oxygen potential distribution diagram based on the mathematical model was obtained for the high-titania slag.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Metal Extraction and Bioleaching · Iron and Steelmaking Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. H. G. Du and Z. P. Zhang, Iron Steel Vanadium Titanium, 1995, vol. 16, pp. 1-5.
2. K. Kiukkola and C. Wagner, Journal of the electrochemical society, 1957, vol. 104, pp. 308-316.10.1149/1.2428567 ↗
3. B. Coletti, S. Smets, B. Blanpain, P. Wollants, J. Plessers, C. Vercruyssen and B. Gommers, Ironmaking & Steelmaking, 2003, vol. 30, pp. 217-222.10.1179/030192303225009588 ↗
4. M. Kawakami, K. S. Goto and M. Matsuoka, Metallurgical and Materials Transactions B, 1980, vol. 11, pp. 463-469.10.1007/BF02676890 ↗
5. J. W. Matousek, Jom, 2013, vol. 65, pp. 1584-1588.10.1007/s11837-013-0713-1 ↗
6. K. Nagat and K. S. Goto, Solid State Ionics, 2006, vol. 9, pp. 1249-1256.
7. K. Nagata and K. S. Goto, Tetsu- to- Hagane, 2009, vol. 74, pp. 1801-1808.10.2355/tetsutohagane1955.74.9_1801 ↗
8. E. T. Turkdogan, Ironmaking & Steelmaking, 2013, vol. 27, pp. 32-36.10.1179/030192300677354 ↗
9. O. Volkova, M. E. Vogel and D. Janke, Ironmaking & Steelmaking, 2003, vol. 30, pp. 287-292.10.1179/030192303225003881 ↗
10. K. Q. Huang, Q. G. Liu, Iron & Steel, 1991, vol. 26, pp. 68-72.
11. P. Geldenhuis, P. C. Pistorius. Journal of the Southern African Institute of Mining and Metallurgy, 1999, vol. 99, pp. 41-47.
12. J. Pesl and R. Hurman Eriç, Metallurgical and Materials Transactions B, 1999, vol. 30, pp. 695-705.10.1007/s11663-999-0031-8 ↗
13. K. Borowiec and T. Rosenqvist, Scandinavian Journal of Metallurgy, 1981, vol. 10, pp. 217-224.
14. S. K. Gupta, V. Rajakumar and P. Grieveson, Canadian Metallurgical Quarterly, 2013, vol. 28, pp. 331-335.10.1179/cmq.1989.28.4.331 ↗
15. R. R. Merritt and A. G. Turnbull, Journal of Solid State Chemistry, 1974, vol. 10, pp. 252-259.10.1016/0022-4596(74)90032-2 ↗
16. S. Itoh, O. Inoue and T. Azakami, Materials Transactions, JIM, 1998, vol. 39, pp. 391-398.10.2320/matertrans1989.39.391 ↗
17. L. A. Taylor, R. J. Williams and R. H. McCallister, Earth and Planetary Science Letters, 1972, vol. 16, pp. 282-288.10.1016/0012-821X(72)90204-X ↗
18. H. Schmalzried, Berichte der Bunsengesellschaft für physikalische Chemie, 1962, vol. 66, pp. 572-576.10.1002/bbpc.19620660710 ↗
19. S. H. Liu, R. J. Fruehan, A. Morales and B. Ozturk, Metallurgical & Materials Transactions B, 2001, vol. 32, pp. 31-36.10.1007/s11663-001-0005-y ↗
20. K. Hu, X. W. Lv, S. P. Li, W. Lv, B. Song and K. Han, Metallurgical and Materials Transactions B, 2018, vol. 49, pp. 1963-1973.10.1007/s11663-018-1284-x ↗
21. From Stian Seim: NTNU, PhD Thesis, 2011, pp. 271.
22. G. Eriksson, A. D. Pelton, E. Woermann and A. Ender, Cheminform, 1997, vol. 100, pp. 1839-1849.
23. A. H. Webster and N. F. H. Bright, Journal of the American Ceramic Society, 2010, vol. 44, pp. 110-116.10.1111/j.1151-2916.1961.tb13723.x ↗
24. G. Tranell, O. Ostrovski and S. Jahanshahi, Metallurgical and Materials Transactions B, 2002, vol. 33, pp. 61-67.10.1007/s11663-002-0086-2 ↗