2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 550 pages |
| ISBN: | 978-1-987820-26-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Evaluation of Heat Treated Coal-Iron Ore Briquettes
Cesar Yuji Narita1; Marcelo Mourao2; Cyro Takano2; Lina Cardona2;1POLYTECHNIC SCHOOL OF THE UNIVERSITY OF SAO PAULO, Sao Paulo, Brazil; 2UNIVERSITY OF SAO PAULO, Sao Paulo, Brazil;
Type of Paper: Regular
Id Paper: 137
Topic: 3
Abstract:
Carbon composite iron ore agglomerates have been studied for years as partial substitutes of coke and sinter in blast furnaces because of their high reduction rates. In recent years, the development of the Carbon Composite Iron Ore Hot Briquette (CCB) addressed the problem of poor mechanical strength at high temperatures. This paper tests an alternative method for manufacturing self-reducing briquettes and evaluates their physical properties and kinetic behavior during reduction. The method for manufacturing self-reducing briquettes consists of pressing a mixture of fine particles of coal and pellet feed iron ore in a laboratorial briquetting machine followed by a heat treatment. The briquettes showed an average compressive strength of 58 kgf and apparent activation energy for reduction of 306 kJ/mol.
Keywords:
Carbon; Coke; Composite; Ferrous; Iron;References:
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[7] C. Y. Narita, M. B. Mourao and C. Takano. Development of composite briquettes of iron ore and coal hardened by heat treatment. Maney Publishing. (2015). Ironmaking and Steelmaking.