Results 31 to 40 of about 8,502 (265)

Reduction behavior of iron in the red mud [PDF]

open access: yesJournal 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

The aggregation effect of organic matter on bauxite residue particles and its improvement mechanism

open access: yesFrontiers 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

Direct Phosphoric Acid Leaching of Bauxite Residue for Selective Scandium Extraction

open access: yesMetals, 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

The effects of leaching from alkaline red mud on soil biota: modelling the conditions after the Hungarian red mud disaster [PDF]

open access: yes, 2013
A soil column experiment was set up to investigate the effect of red mud from Ajka (Hungary) on a typical soil profile from the concerned area. The chemical changes caused by the leachate of the red mud and the effects of these changes on living ...
András Makó   +14 more
core   +1 more source

Carbothermic Reduction of Bauxite Residue.

open access: yesShigen-to-Sozai, 1999
A recovery method of iron component as metallic phase from bauxite residue (red mud) discharged from Bayer process was examined. Tablets prepared with fine mixtures of red mud and carbonaceous materials were heated up to various temperatures to reduce iron oxides in the red mud.
Takaya KITAJIMA, Eiki KASAI
openaire   +2 more sources

An Investigation on Reduction of Calcium Added Bauxite Residue Pellets by Hydrogen and Iron Recovery through Physical Separation Methods

open access: yesMetals, 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

Modes of occurrences of scandium in Greek bauxite and bauxite residue

open access: hybridMinerals Engineering, 2018
Abstract Bauxite and bauxite residue, a by-product of alumina production, were studied using a combination of microanalytical techniques — electron microprobe wavelength dispersive spectrometry, laser ablation inductively coupled plasma mass spectrometry and μ-Raman spectroscopy.
Johannes Vind   +8 more
openalex   +3 more sources

Influence of free silica in the production of synthetic aggregates from bauxite residue

open access: yesCerâmica, 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

A review of the potential for rare earth element resources from European red muds: examples from Seydişehir, Turkey and Parnassus-Giona, Greece [PDF]

open access: yes, 2016
ArticleRare earth elements (REE) are viewed as ‘critical metals’ due to a complex array of production and political issues, most notably a near monopoly in supply from China.
Deady, EA   +4 more
core   +1 more source

Formation, properties and revegetation prospects for bauxite processing residue and the effects of seawater neutralization [PDF]

open access: yes, 2017
Partial neutralisation of bauxite residue (by treatment with seawater) prior to its deposition in land-based lagoons or impoundments minimises the need to treat the alkaline, sodic drainage both during operation of the alumina refinery and following its ...
Haynes, Richard J., Li, Yaying
core   +1 more source

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