Abstract
This study discusses the smelting behaviors of chromium-bearing vanadium titanomagnetite pellets (CVTP) with TiO2 additions. The results show that the softening start temperature T10% increases from 1148°C to 1215°C, and the softening end temperature T40% increases from 1280°C to 1336°C. The melting start temperature TS increases from 1318°C to 1352°C and the dripping temperature TD decreases from 1558°C to 1505°C. The primary phases of slag are (Ti0.7V0.3)2O3, (Mg0.6Ti2.4)O5, MgSiO3, and MgTi2O5, and the equilibrium phases calculated by FactSage 7.0 verify the primary phases. The titanium-vanadium compound as an intermediate reactant is generated at the interface of pig iron and slag. The FT-IR results show the depolymerization of slag, which results in the improvement of the softening–melting behaviors.
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The authors are especially thankful to the National Natural Science Foundation of China (Grant Nos. 51674084 and 21908020).
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Tang, W., Yang, S. & Xue, X. Effect of Titanium on the Smelting Process of Chromium-Bearing Vanadium Titanomagnetite Pellets. JOM 73, 1362–1370 (2021). https://doi.org/10.1007/s11837-021-04608-y
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DOI: https://doi.org/10.1007/s11837-021-04608-y