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Smelting of EAF and BF dust in combination with scrap melting to recycle the by-products from steel industry
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriell miljö- och processteknik.
2005 (Engelska)Ingår i: 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, s. 2729-2738Konferensbidrag, Publicerat paper (Refereegranskat)
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

Ort, förlag, år, upplaga, sidor
Minerals, Metals & Materials Society, 2005. s. 2729-2738
Nationell ämneskategori
Metallurgi och metalliska material
Forskningsämne
Processmetallurgi
Identifikatorer
URN: urn:nbn:se:ltu:diva-37837Lokalt ID: bfbc5460-fcd0-11dc-a946-000ea68e967bISBN: 84-95520-06-0 (tryckt)OAI: oai:DiVA.org:ltu-37837DiVA, id: diva2:1011335
Konferens
Global Symposium on Recycling, Waste Treatment and Clean Technology : 26/09/2004 - 29/09/2004
Anmärkning
Godkänd; 2005; 20080328 (cira)Tillgänglig från: 2016-10-03 Skapad: 2016-10-03 Senast uppdaterad: 2017-11-25Bibliografiskt granskad

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Yang, QixingMenad, Nourreddine

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