Extraction of scandium from bauxite residue by high-pressure leaching in sulfuric acid solution [PDF]
Heliyon, 2023 Rare earth elements, such as yttrium, scandium, neodymium, and praseodymium, have been reported to be associated with minerals in bauxite and transferred to the refining residue when bauxite is refined to alumina (Al2O3) by Bayer Process.
M.R. Kanekaputra, M.Z. Mubarok
doaj +2 more sources
Experimental Simulation of Long Term Weathering in Alkaline Bauxite Residue Tailings [PDF]
Metals, 2015 Bauxite residue is an alkaline, saline tailings material generated as a byproduct of the Bayer process used for alumina refining. Developing effective plans for the long term management of potential environmental impacts associated with storage of these ...
Talitha C. Santini +2 more
doaj +5 more sources
Replacement of Sand with Bauxite Mining Waste in Concrete Production [PDF]
Journal of Materials and Engineering Structures, 2019 The use of natural sand as fine aggregate in concrete is becoming problematic due to scarcity and pressure on mining of the resource. Alternate sources such as the use of industrial waste as replacement of natural sand in concrete are gaining popularity ...
Humphrey DANSO, Joseph Kent BOADI
doaj +2 more sources
Vanadium removal and recovery from bauxite residue leachates by ion exchange [PDF]
Environ Sci Pollut Res Int, 2016 Bauxite residue is an important by-product of the alumina industry, and current management practices do not allow their full valorisation, especially with regard to the recovery of critical metals.
Burke, IT +4 more
core +6 more sources
Modes of occurrences of scandium in Greek bauxite and bauxite residue
Minerals 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 +2 more
exaly +2 more sources
Bioleaching for critical metal recovery from bauxite residue- unlocking waste valorization [PDF]
Frontiers in Bioengineering and BiotechnologyThe increasing problem of waste from alumina refineries endangers ecosystems and local communities. With over 4 billion tons of bauxite residue stored globally, more than 140 million tons generated annually, and less than 3% currently reused, the ...
Fernanda Soto-Montandon +7 more
doaj +2 more sources
High Temperature Reduction of Bauxite Residue
Materials Proceedings, 2022 The present study focused on investigating the high-temperature reduction of bauxite residue, also known as red mud. A series of reduction experiments on red mud was performed to investigate the influences of temperature (1400, 1450, and 1500 °C ...
Lanjar Grahita +2 more
doaj +2 more sources
Technospheric Mining of Rare Earth Elements from Bauxite Residue (Red Mud): Process Optimization, Kinetic Investigation, and Microwave Pretreatment [PDF]
Scientific Reports, 2017 Some rare earth elements (REEs) are classified under critical materials, i.e., essential in use and subject to supply risk, due to their increasing demand, monopolistic supply, and environmentally unsustainable and expensive mining practices.
Sable Reid +3 more
doaj +2 more sources
Heat-resistant cementitious composites based on binders derived from cement and metallurgical waste [PDF]
Scientific ReportsOne of the main aspects of consideration in building safety and durability in fire and extreme conditions is the high-temperature performance of cementitious composites.
Samal Akimbekova +4 more
doaj +2 more sources
Eco-efficient treatment of hazardous bauxite liquid-residue using acid-activated clays
Cleaner Chemical Engineering, 2022 The alumina industry requires a material capable of reducing the high levels of iron and alkalinity in bauxite liquid-residue in an eco-efficient manner while producing fewer by-products.
Daniel Dodoo +5 more
doaj +1 more source