journal article·2022-03

Phase equilibria analysis of hematite pellets during induration

Chenyang Xu, Jianliang Zhang, Zhengjian Liu, Anjun Xu, Yaozu Wang, Liming Ma, Chuanhui Li

Calphad· Volume 76
Publisher page

Abstract

In order to study the change of each phase and the influence of single oxide during the consolidation of pellets. A systematic thermodynamic calculation was carried out through the phase diagram to study the influence of five oxides (CaO, SiO, FeO, AlO and MgO) on the phase equilibrium of the hematite pellet system. The results show that the content of CaO has the most significant effect on the content of liquid phase and SPINA. There are critical values for the influence of SiO and CaO on the CaFeSiO phase, which are 3.5% and 3.0%, respectively. Through in-situ heating experiments, XRD-Rietveld and SEM-EDS, the macro morphology and phase composition of the hardened samples were compared and analyzed. Finally, a multiple regression model is used to predict the liquid content of hematite pellets, which is effective in predicting the phase component.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

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

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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