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Article

Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K

1
School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435000, China
2
The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
*
Author to whom correspondence should be addressed.
Processes 2019, 7(11), 788; https://doi.org/10.3390/pr7110788
Received: 25 September 2019 / Revised: 7 October 2019 / Accepted: 19 October 2019 / Published: 1 November 2019
(This article belongs to the Special Issue Process Modeling in Pyrometallurgical Engineering)
High-strength tire cord steel is mainly used in radial ply tires, but the presence of brittle Ti inclusions can cause failure of the wires and jeopardize their performance in production. In order to control the titanium content during steel production, a thermodynamic model for predicting the titanium distribution ratio between CaO–SiO2–Al2O3–MgO–FeO–MnO–TiO2 slags during the ladle furnace (LF) refining process at 1853 K has been established based on the ion–molecule coexistence theory (IMCT), combined with industrial measurements, and the effect of basicity on the titanium distribution ratio was discussed. The results showed that the titanium distribution ratio predicted by the developed IMCT exhibited a dependable agreement with the measurements, and the optical basicity is suggested to reflect the correlation between basicity and the titanium distribution ratio. Furthermore, quantitative titanium distribution ratios of TiO2, CaO·TiO2, MgO·TiO2, FeO·TiO2, and MnO·TiO2 were acquired by the IMCT model, respectively. Calculation results revealed that the structural unit CaO plays a pivotal role in the slags in the de-titanium process. View Full-Text
Keywords: titanium distribution ratio; thermodynamic model; ion–molecule coexistence theory; LF refining slags titanium distribution ratio; thermodynamic model; ion–molecule coexistence theory; LF refining slags
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MDPI and ACS Style

Lei, J.; Zhao, D.; Feng, W.; Xue, Z. Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K. Processes 2019, 7, 788. https://doi.org/10.3390/pr7110788

AMA Style

Lei J, Zhao D, Feng W, Xue Z. Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K. Processes. 2019; 7(11):788. https://doi.org/10.3390/pr7110788

Chicago/Turabian Style

Lei, Jialiu, Dongnan Zhao, Wei Feng, and Zhengliang Xue. 2019. "Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K" Processes 7, no. 11: 788. https://doi.org/10.3390/pr7110788

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