- Title
- Effect of temperature, time, and cooling rate on the mineralogy, morphology, and reducibility of iron ore sinter analogues
- Creator
- Harvey, Tobin; Pownceby, Mark I.; Chen, Jeff; Webster, Nathan A. S.; Nguyen, Thi Bang Tuyen; Matthews, Leanne; O'Dea, Damien; Honeyands, Tom
- Relation
- JOM Vol. 73, Issue 1, p. 345-355
- Publisher Link
- http://dx.doi.org/10.1007/s11837-020-04452-6
- Publisher
- Springer New York
- Resource Type
- journal article
- Date
- 2021
- Description
- Analogue sinter tablets were produced at temperatures between 1250°C and 1320°C, with a range of hold times and cooling rates. Platy silico-ferrite of calcium and aluminum (SFCA) morphology was identified in samples produced at 1250°C using reflected light microscopy; however, quantitative x-ray diffraction (XRD) identified the presence of the SFCA phase, with no SFCA-I detected. This proves that the platy SFCA morphology common in analysis by reflected light microscopy cannot be attributed to the SFCA-I mineral without further analysis. Micro-XRD and electron probe micro-analysis (EPMA) were carried out on an area of platy SFCA confirming this result. The sinter analogue tablets were reduced in a 30% CO, 70% N2 gas mixture at 900°C in a tube furnace thermo-gravimetric analyzer. The degree of reduction of the tablets in this study was found to be controlled by the porosity of the samples, rather than by the morphology or mineralogy of the bonding phase.
- Subject
- silico-ferrite of calcium and aluminum (SFCA); morphology; analogue sinter tablets; iron ore
- Identifier
- http://hdl.handle.net/1959.13/1420564
- Identifier
- uon:37608
- Identifier
- ISSN:1047-4838
- Rights
- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Language
- eng
- Full Text
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