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Experimental Simulation of Long Term Weathering in Alkaline Bauxite Residue Tailings [PDF]

open access: goldMetals, 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   +7 more sources

Extraction of scandium from bauxite residue by high-pressure leaching in sulfuric acid solution [PDF]

open access: yesHeliyon, 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

Highly efficient separation of titanium minerals from a modified bauxite residue through direct reduction: A comparison study

open access: goldJournal of Materials Research and Technology, 2023
Bauxite residue, which is a solid waste generated during the production of alumina, contains significant amounts of iron (Fe) and titanium (Ti) resources.
Yuguan Zhang   +7 more
doaj   +2 more sources

Vanadium removal and recovery from bauxite residue leachates by ion exchange. [PDF]

open access: yesEnviron 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.
Gomes HI   +4 more
europepmc   +7 more sources

Bioleaching for critical metal recovery from bauxite residue- unlocking waste valorization [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology
The 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

Replacement of Sand with Bauxite Mining Waste in Concrete Production [PDF]

open access: yesJournal 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

Combined Decarbonizing Technologies for Treatment of Bauxite Residues [PDF]

open access: diamondWaste
This study explores both pyrometallurgical and hydrometallurgical methods for decarbonizing and recovering valuable metals from bauxite residue, with hydrogen plasma reduction and direct acid leaching as the primary approaches.
Srecko Stopic   +6 more
doaj   +2 more sources

Technospheric Mining of Rare Earth Elements from Bauxite Residue (Red Mud): Process Optimization, Kinetic Investigation, and Microwave Pretreatment [PDF]

open access: yesScientific 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]

open access: yesScientific Reports
One 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

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