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Smelting of EAF and BF dust in combination with scrap melting to recycle the by-products from steel industry
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2005 (English)In: Proceedings of the REWAS '04: Global Symposium on Recycling, Waste Treatment and Clean Technology held in Madrid, Spain, September 26 - 29, 2004, Minerals, Metals & Materials Society, 2005, p. 2729-2738Conference paper, Published paper (Refereed)
Abstract [en]

The baghouse dust generated from the electric arc furnace (EAF) process must be treated using environmentally and economically sound methods. One treatment step is to smelt the dust in the EAF so the dust can be upgraded for further processing. Parameters related to optimum dust smelting in the EAF were studied in the present laboratory tests. An induction furnace was used to smelt test charges, steel parts weighing 5 kg, slag formers and the EAF dust pellets (EAFDP) with a steel weight of 2%. Eight tests were performed. Reducing agents for Zn oxides in the EAFDP were coke, blast furnace dust, solid iron and liquid iron with temperature of 1650°C. Influences of contacts between the EAFDP and reducing agents on Zn dissolution in liquid steel were examined in some detail. It was demonstrated by the tests that material mixing and heating were important for minimizing the impact of the EAFDP smelting on steel and slag properties when using either coke or blast furnace dust as reducing agents. Based on results from the present laboratory tests, some suggestions were made for production-scale recycling of EAFDP in the EAF

Place, publisher, year, edition, pages
Minerals, Metals & Materials Society, 2005. p. 2729-2738
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-37837Local ID: bfbc5460-fcd0-11dc-a946-000ea68e967bISBN: 84-95520-06-0 (print)OAI: oai:DiVA.org:ltu-37837DiVA, id: diva2:1011335
Conference
Global Symposium on Recycling, Waste Treatment and Clean Technology : 26/09/2004 - 29/09/2004
Note
Godkänd; 2005; 20080328 (cira)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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Yang, QixingMenad, Nourreddine

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CiteExportLink to record
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  • apa
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