Viable Scandium Extraction from Bauxite Residue at Pilot Scale
Materials Proceedings, 2022 Scandium extraction from the Greek bauxite residue has been demonstrated at an industrial pilot plant at MYTILINEOS. This work comes as the result of the H2020 SCALE collaborative research project.
Panagiotis Davris +6 more
doaj +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
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 +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
Efficient separation of rare earths recovered by a supported ionic liquid from bauxite residue leachate [PDF]
RSC Adv, 2018 Rare earths are separated from base metals in bauxite residue leachate by a supported ionic liquid phase.
Koen Binnemans +8 more
core +2 more sources
Accelerating Bauxite Residue Remediation with Microbial Biotechnology
, 2019 Biological neutralisation of pH, driven by the microbial fermentation of added organic carbon substrates such as glucose, has recently emerged as a promising technique for remediation of bauxite residue, dropping pH from >11 to
Santini, T. C. +9 more
openaire +5 more sources
Seawater Neutralization of Alkaline Bauxite Residue and Implications for Revegetation
Journal of Environmental Quality, 2004 ABSTRACTReaction of bauxite residue with seawater results in neutralization of alkalinity through precipitation of Mg‐, Ca‐, and Al‐hydroxide and carbonate minerals. In batch studies, the initial pH neutralization reaction was rapid (<5 min), with further reaction continuing to reduce pH for several weeks.
Menzies, N. W. +2 more
openaire +6 more sources
Advanced characterisation of bauxite residue
, 2018 Bauxite residue is the solid waste produced in the extraction of alumina from bauxite using the Bayer process. Questions on how to manage and utilise bauxite residue have been the subject of considerable research by both institutes and industry. Despite these efforts, efficient recovery of valuable components is difficult to achieve, partly due to the ...
Peng, H. +4 more
openaire +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