Results 21 to 30 of about 253,149 (212)
Crystals, 2022 Bauxite residue is a high-iron waste of the alumina industry with significant contents of scandium, aluminum, and titanium. This study focuses on the recovery of Sc, Al, Ti, and Si from iron-depleted bauxite residue (IDBR) into valuable products.
Pavel Grudinsky +4 more
doaj +1 more source
Geotechnical characterization of bauxite residue (red mud) [PDF]
, 2015 Bauxite residue is the iron-oxide rich mine waste from the processing of bauxite ore for the extraction of alumina through the Bayer process. The Bayer process uses caustic soda, high pressure, and high temperature to leach alumina from ferruginous ...
Gore, Matthew Stephen
core +3 more sources
The aggregation effect of organic matter on bauxite residue particles and its improvement mechanism
Frontiers in Environmental Science, 2023 Introduction: Understanding organic amendment and the agglomeration of bauxite residue particles is vital to soil amelioration of bauxite residues. In this study, a pot culture experiment was conducted to illustrate the aggregation of organic amendment ...
Mengyang Dong +12 more
doaj +1 more source
Reduction behavior of iron in the red mud [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2021 Red mud or bauxite residue contains significant quantities of industrial metals such as Fe, Al, and Ti, as well as rare earth elements such as Sc, Ce, and La.
Eray S. +3 more
doaj +1 more source
Direct Phosphoric Acid Leaching of Bauxite Residue for Selective Scandium Extraction
Metals, 2022 Bauxite residue, the high alkaline and fine-grained byproduct of Bayer process for alumina’s production, is a material rich in numerous minerals and elements of high value and techno-economical interest in high tech applications such as rare earths ...
Lamprini-Areti Tsakanika +5 more
doaj +1 more source
Metals, 2023 This study investigates the properties of H2-reduced calcium-added bauxite residue, self-hardened pellets, and the feasibility of iron recovery through electrostatic and magnetic separation methods.
Ahmad Hassanzadeh +3 more
doaj +1 more source
Influence of free silica in the production of synthetic aggregates from bauxite residue
Cerâmica, 2023 The residue from the Bayer process has physicochemical characteristics that allow its use in the production of synthetic aggregate, although some characteristics such as low plasticity and water absorption still need better control.
M. B. de Vilhena +3 more
doaj +1 more source
Comparison of advanced hydraulic properties between treated and untreated bauxite residue [PDF]
E3S Web of Conferences, 2020 Advanced hydraulic characteristics of treated and untreated Bauxite Residue (Red Mud) are studied and compared using a Steady-State Centrifugation (SSC) Unsaturated Flow Apparatus (UFA).
Machado Joao A. R. +3 more
doaj +1 more source
Romanian Journal of Ecology & Environmental Chemistry, 2022 This paper is describing a careful study on content and distribution of rare elements in the fluid and solid phases involved in dry and classified aluminum hydroxide production through Bayer process at Alum SA, Tulcea, Romania.
Lidia Kim +7 more
doaj +1 more source
Optimization of Microwave Reductive Roasting Process of Bauxite Residue
Metals, 2020 In this study, microwave-assisted heating is presented as a suitable method to transform the hematite and goethite contained in bauxite residue into magnetite, wüstite, and metallic iron, with a short processing time.
Chiara Cardenia +2 more
doaj +1 more source