IRON ORE SINTER PRODUCTION USING ELECTRIC ARC FURNACE DUST AS RAW MATERIAL
The steel production through Electric Arc Furnaces (EAF) generates approximately 15% to 20% of Electric Arc Furnace Dust (EAFD). This waste is considered dangerous due to the presence of metals as lead and cadmium that leach in contact with water. Because of this, the EAFD recycling becomes an alt...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia, Materiais e Mineração
2013-03-01
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| Series: | Tecnologia em Metalurgia, Materiais e Mineração |
| Subjects: | |
| Online Access: | http://www.tecnologiammm.com.br/files/v10n1/v10n1a10.pdf |
| Summary: | The steel production through Electric Arc Furnaces (EAF) generates approximately 15% to 20% of Electric Arc
Furnace Dust (EAFD). This waste is considered dangerous due to the presence of metals as lead and cadmium that leach
in contact with water. Because of this, the EAFD recycling becomes an alternative to diminish the costs with landfills
and environmental harms caused by the waste. The iron ore sintering is a process that reuses most part of powders
generated by the steelmaking. However the EAFD is not reused in this process because it contains zinc. The zinc is
highly detrimental inside blast furnaces causing heavy crusts and affecting the thermodynamic equilibrium of the process.
Therefore, this work studies the EAFD reuse in the iron ore sintering process to produce iron ore sinter with zinc
contents between the limits established for blast furnaces. |
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| ISSN: | 2176-1515 2176-1523 |