#6658. Neutralization of Bayer bauxite residue (red mud) by various brines: A review of chemistry and engineering processes

December 2026publication date
Proposal available till 30-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Metals and Alloys;
Industrial and Manufacturing Engineering;
Materials Chemistry;
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Abstract:
Bauxite residues from the alumina industry are highly alkaline and should be neutralized before using them for industrial or agricultural purposes. This review evaluates the effectiveness of seawater and other brines as neutralizing agents, which have advantages over alternatives such as mineral acids. Brines not only lower pH but also prevent reversion by immobilizing alkalinity in the form of Ca and Mg minerals such as hydrotalcite, which can also bind to potential contaminants.
Keywords:
Bauxite residue; Brine; Hydrotalcite; Neutralization; Red mud; Seawater

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