Recycling lithium mine tailings in the production of low temperature (700–900 °C) ceramics : effect of ladle slag and sodium compounds on the processing and final properties
Lemougna, Patrick N.; Yliniemi, Juho; Ismailov, Arnold; Levanen, Erkki; Tanskanen, Pekka; Kinnunen, Paivo; Roning, Juha; Illikainen, Mirja (2019-06-18)
Patrick N. Lemougna, Juho Yliniemi, Arnold Ismailov, Erkki Levanen, Pekka Tanskanen, Paivo Kinnunen, Juha Roning, Mirja Illikainen, Recycling lithium mine tailings in the production of low temperature (700–900 °C) ceramics: Effect of ladle slag and sodium compounds on the processing and final properties, Construction and Building Materials, Volume 221, 2019, Pages 332-344, ISSN 0950-0618, https://doi.org/10.1016/j.conbuildmat.2019.06.078
© 2019 Elsevier Ltd. All rights reserved.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2019112744445
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Abstract
This paper deals with the valorization of quartz and felspar rich lithium mine tailings (QFS) in the development of construction materials. Ladle slag was used as green strength increasing agent. Sodium hydroxide and carbonate were used as fluxing agents to allow sintering at 700–900 °C. Of these, sodium hydroxide was found to be the more efficient. The sintered ceramics were characterized by X-ray diffraction, scanning electron microscopy, compressive test, water absorption, apparent density and dilatometry; the results were found to comply with ASTM C62–99 specifications for building brick, and interesting for a sustainable use of resources.
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