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System analysis of slag utilisation from vanadium recovery in an integrated steel plant
RISE, Swerea, Swerea MEFOS.
SSAB EMEA AB.
RISE, Swerea, Swerea MEFOS.
Luleå University of Technology.
2013 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 47, 43-51 p.Article in journal (Refereed)
Abstract [en]

Vanadium in raw materials used in iron- and steelmaking, a particular challenge for Nordic steel producers, affects the composition of the generated slag from the steelmaking vessel, i.e. The basic oxygen furnace (BOF) adversely and reduces the potential for recycling and external utilisation. A process concept under development aims to enrich and extract the vanadium content of slag from the BOF, making use of the vanadium in the slag and also increasing the overall slag use potential. Applications of this concept affect slag compositions and internal material flows in the iron and steel production system, especially when recycling BOF slags as flux in the blast furnace (BF). This paper will present a case study, based on a Process Integration (PI) approach, using a designated system model to simulate the steel production system and the implementation of the process concept, thereby analysing how to obtain maximum usage of metallurgical slags without compromising the quality of the main product, i.e. liquid steel. Different approaches were studied to improve the environmental sustainability in the production system by maximising the material efficiency through vanadium recovery (as FeV alloy) and the use of slags, thereby minimising the stored/deposited slag amounts. © 2012 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2013. Vol. 47, 43-51 p.
Keyword [en]
Material efficiency, Slag recycling, Steel production, System analysis, Vanadium recovery
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12668DOI: 10.1016/j.jclepro.2012.09.002Scopus ID: 2-s2.0-84879904081OAI: oai:DiVA.org:ri-12668DiVA: diva2:972860
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • modern-language-association-8th-edition
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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Output format
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