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Use of Mining Tailings or Their Sedimentation and Flotation Fractions in a Mixture with Soil to Produce Structural Ceramics

Author

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  • Igor B C. Amaral

    (JK Campus, Institute of Science and Technology (ICT), Bachelor of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina 39100-000, Minas Gerais, Brazil)

  • Luis Carlos D. Cavalcante

    (Center of Natural Sciences, Federal University of Piauí (UFPI), Teresina 64049-550, Piauí, Brazil)

  • José D. Fabris

    (Department of Chemistry ICEx, Federal University of Minas Gerais (UFMG), Av. Antônio Carlos, 6627-Pampulha, Belo Horizonte 31270-901, Minas Gerais, Brazil)

  • Bernat V. Prat

    (JK Campus, Institute of Science and Technology (ICT), Bachelor of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina 39100-000, Minas Gerais, Brazil)

  • Arlete B. Reis

    (JK Campus, Institute of Science and Technology (ICT), Chemical Engineering, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina 39100-000, Minas Gerais, Brazil)

Abstract

The ceramic materials industry has vast potential for use of waste from industrial processes, such as iron mining tailings. The aim of this study was to test technological use of tailings samples from the dam rupture of the Samarco S.A. Company in 2015 to produce structural ceramics. Sedimentation and flotation processes were used to improve their characteristics, analyzing their chemical and mineralogical composition and granulometry. We produced 48 samples with a mixture of soil and residues in proportions of 10, 20, and 30 wt%, with sintering at 950 °C. The results showed that co-processing of iron mining tailings can be considered viable for improving certain aspects of some technological properties. The maximum amount of residue used was 30 wt% for any of the fractions used, as above this concentration the specimens lose important characteristics.

Suggested Citation

  • Igor B C. Amaral & Luis Carlos D. Cavalcante & José D. Fabris & Bernat V. Prat & Arlete B. Reis, 2021. "Use of Mining Tailings or Their Sedimentation and Flotation Fractions in a Mixture with Soil to Produce Structural Ceramics," Sustainability, MDPI, vol. 13(2), pages 1-17, January.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:2:p:911-:d:482127
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    Cited by:

    1. Diana Méndez & Fredy Guzmán-Martínez & Mauricio Acosta & Luis Collahuazo & Danilo Ibarra & Luis Lalangui & Samantha Jiménez-Oyola, 2022. "Use of Tailings as a Substitute for Sand in Concrete Blocks Production: Gravimetric Mining Wastes as a Case Study," Sustainability, MDPI, vol. 14(23), pages 1-14, December.

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