EVALUATION OF THE REDUCTION BEHAVIOR OF HEMATITIC IRON ORE UNDER BLAST FURNACE NEAR CONDITIONS

1 BAUMGARTNER Kerstin
Co-authors:
1 HANEL Martina B.
Institution:
1 Ferrous Metallurgy, Montanuniversität Leoben, Leoben, Austria, EU, kerstin.baumgartner@stud.unileoben.ac.at
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
135-138
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
329 views / 141 downloads
Abstract

The operation of a blast furnace is characterized by simultaneous running chemical and physical processes. Hence, the influence of parameters like pressure, temperature and gas composition on the reduction behaviour of the iron bearing minerals cannot easily be presented in a simplified form, e.g. a reduction test with only CO as reducing agent. In the course of this work experiments on the reduction behaviour of iron ores were made with a vertical retort furnace. The mass loss due to the removal of oxygen in the iron bearing material was recorded. The morphologic changes of the microstructures before and after the reduction process were examined by means of metallographic sections of samples. The goal of this work was to evaluate the influence of both gas composition and temperature profile on reducibility and to determine optimized conditions for the operation of a blast furnace.

Keywords: reduction, iron ore, blast furnace, hematite

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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