Results 21 to 30 of about 695 (179)
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
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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
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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
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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
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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
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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
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Microbially-driven strategies for bioremediation of bauxite residue [PDF]
Journal of Hazardous Materials, 2015 Globally, 3 Gt of bauxite residue is currently in storage, with an additional 120 Mt generated every year. Bauxite residue is an alkaline, saline, sodic, massive, and fine grained material with little organic carbon or plant nutrients. To date, remediation of bauxite residue has focused on the use of chemical and physical amendments to address high pH,
Santini, Talitha C. +2 more
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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
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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
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Radiological assessment of the bauxite residue valorization chain [PDF]
Journal of Radioanalytical and Nuclear Chemistry, 2019 The behavior of radionuclides in the bauxite residue valorization chain has been analyzed, and accumulation ratios have been measured for secondary residues produced after recovery of valuable metals. Key analysis outcomes are valid specifically for the processes and raw materials in use at the Aluminium of Greece plant and are as follows: the ...
Andrei Goronovski, Alan H. Tkaczyk
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