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Challenges with increased alumina concentration in the zinc-copper smelting slags
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-1511-8020
Hatch Ltd..
2013 (English)In: COM 2013 hosted by MS&T13: Ralph LLoyd Harris Memorial Symposium, MetSoc , 2013, p. 457-467Conference paper, Published paper (Refereed)
Abstract [en]

End of life (EOL) electronics is known to be a valuable resource of base and precious metals, and its application as a secondary raw material in pyrometallurgical processes is steadily increasing. These types of materials inevitably introduce various impurities to the smelting furnaces, which may change the physical and chemical properties of the products and by-products of the operation. Alumina is one of the most common and significant oxide components associated with EOL electronics; therefore, its influences on different properties of the iron-silicate or fayalite-type slags are of particular interest to the non-ferrous metal producers. The current article summarizes the effects of an increased alumina concentration on slag thermo-physical properties (density, surface tension, viscosity, etc.). Operational difficulties, e.g. copper loss to the slag phase and foaming of the melt, resulting from such a change in slag composition are also discussed.

Place, publisher, year, edition, pages
MetSoc , 2013. p. 457-467
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-29577Local ID: 315e81a4-1163-4471-a6f5-15de036684c7OAI: oai:DiVA.org:ltu-29577DiVA, id: diva2:1002801
Conference
Conference of Metallurgists : 27/10/2013 - 31/10/2013
Note
Godkänd; 2013; 20131125 (sinmos)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-01-19Bibliographically approved

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Mostaghel, SinaSamuelsson, Caisa

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CiteExportLink to record
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