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Integrated recycling at Boliden's Rönnskär smelter: formation of slag products
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Boliden Mineral AB.
Royal Institute of Technology.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-1511-8020
2012 (English)In: International Smelting Technology Symposium: Incorporating the 6th Advances in Sulfide Smelting Symposium / [ed] Jerome Downey; Thomas P. Battle; Jesse F. White, Wiley-TMS , 2012, p. 117-124Conference paper, Published paper (Refereed)
Abstract [en]

Rönnskär Smelter of Boliden Mineral AB, Sweden, is a large end-processor of secondary raw materials and waste, including electronic scrap. E-scrap may introduce various impurities to the smelter’s flow-sheet, among which Al2O3 is a common and significant one. Current article summarizes the results of an ongoing research at Luleå University of Technology, Sweden, to study the influences of alumina on different properties of slag from the zinc fuming process at Rönnskär smelter. A combination of different experimental techniques and thermodynamic calculations has been used to investigate properties such as density, surface tension, effective thermal diffusivity, viscosity, melting and leaching behaviors. Results show that addition of alumina to this slag increases the degree of polymerization of the melt, and the properties vary correspondingly. Mineralogy of the semi-rapidly solidified samples is also changed due to alumina addition. A correlation between mineralogy and leaching behavior can be observed.

Place, publisher, year, edition, pages
Wiley-TMS , 2012. p. 117-124
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-38400Local ID: cc9e4c4a-09ed-49ac-bad5-cc72bb4d1167ISBN: 9781118291160 (print)OAI: oai:DiVA.org:ltu-38400DiVA, id: diva2:1011900
Conference
TMS 2012 Annual Meeting and Exhibition : International Smelting Technology Symposium (Incorporating the 6th Advances in Sulfide Smelting Symposium) 11/03/2012 - 15/03/2012
Note
Godkänd; 2012; 20120224 (sinmos)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-01-19Bibliographically approved

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Mostaghel, SinaSamuelsson, Caisa

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