Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Regular Article
Quantitative Analysis of Mineral Phases in Sinter Ore by Rietveld Method
Toru TakayamaReiko MuraoMasao Kimura
Author information
JOURNAL OPEN ACCESS FULL-TEXT HTML

2017 Volume 103 Issue 6 Pages 397-406

Details
Abstract

Quantification techniques of mineral phases in iron ore sinter has been developed by using Rietveld analysis of X-ray diffraction patterns and applied to iron ore sinters made by the sinter pot test in a laboratory. Rietveld refinements successfully determined phase fractions and structural parameters in co-existing phases such as hematite (α-Fe2O3), magnetite (Fe3O4), multi-component calcium-ferrites (SFCA: Ca2 (Ca, Fe, Al)6 (Fe, Al, Si)6O20 and SFCA-I: Ca2(Ca, Fe)3 (Ca, Fe, Al)8 (Fe, Al)8 O20) and other minor phases.

It was found that strength of iron ore sinter was correlated with quantity of magnetite, and not with quantity of calcium-ferrites. And the lattice constants of calcium-ferrites were different among the specimens obtained from different positions within the sinter.

Rietveld analysis was shown to be a straightforward and high-throughput technique for quantification of mineral phases in the iron ore sinter and the obtained crystallographic parameters can be used as a useful indicator to investigate the sinter reaction.

Content from these authors
© 2017 The Iron and Steel Institute of Japan

This article is licensed under a Creative Commons [Attribution-NonCommercial-NoDerivatives 4.0 International] license.
https://creativecommons.org/licenses/by-nc-nd/4.0/
Previous article
feedback
Top