Abstract
An overview is presented on the prospective use of red mud as a resource in this review. Various scopes are suggested for the utilization of red mud to maintain a sustainable environment. The potential use of red mud covers the valuable metal recovery that could emphasize the use of red mud as a resource. Red mud could act as reduced slag in the metallurgical field for the extraction of minerals and metals for upscale application. Although many studies have revealed the potential utilization of red mud, most of them are only limited to a lab-scale basis. Therefore, a large-scale investigation on recycling of red mud for the extraction in the area of the metal recovery section will draw attention to the extensive use of red mud. Metal ions of major elements Fe (44 wt.%), Al (18.2 wt.%), Si (14.3 wt.%), Ti (9.3 wt.%), Na (6.2 wt.%), Ca (4.4 wt.%) as major elements and of Mg, V, Mn, Cr, K as minor elements and rare earth elements such as Ce (102 mg/kg), La (56 mg/kg), Sc (47 mg/kg), Nd (45 mg/kg), Sm (9 mg/kg). Moreover, an appropriate in-house metal recovery facility with the alumina industry will come out as a cost–benefit analysis.
Highlights
Red mud is one of the by-products generated in the aluminum industry from the ore of bauxite during the calcination process for the extraction of aluminum dioxide
This review presents an overview of the status of red mud as a metal resource considered from the last 11 years
In this work,ofan investigation was carried out for review in the added with various weight fly ash to neutralize the acidity, undergoes added with various weight percentages of fly ash to neutralize the acidity, undergoesthe the area of utilization ofthe red mud as a source of reduced metallicslag ions and resource material
Summary
Red mud is one of the by-products generated in the aluminum industry from the ore of bauxite during the calcination process for the extraction of aluminum dioxide. On theoflatter, it isslag possible sintering process during lab-scale experiments Based on the latter, it is possible to design to design a synergetic utilization for the red mud/fly ash mixture. Red mud could be considered as bricks, road surface material, and in the cement industry with potential use for building applications. This approach is limited due to the alkaline nature of the material. The alkaline nature of red mud is reduced by the acidic counterpart of fly ash, generating the neutral nature of the composite The latter could be the most significant solution for the vastness of the problem, but careful consideration is required for this application. This article will hopefully encourage researchers, industralists, scientists, and government sector to use red mud as a source of metal ions
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