Results 11 to 20 of about 8,502 (265)

High Temperature Reduction of Bauxite Residue

open access: yesMaterials 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

Alkali-reduced Bauxite Residue as Novel SCM [PDF]

open access: yesNordic Concrete Research, 2020
Bauxite residue is a major waste stream available in large volumes globally that can cause risks to the surrounding environment (e.g. ecotoxicity) when disposed and stored by conventional methods.
Danner Tobias   +2 more
doaj   +3 more sources

Silicon Rich Iron Alloy from Bauxite Residue .

open access: gold, 2021
The iron oxide (typically 20–50%) contained in bauxiteresidue (BR) can be recovered as pig iron. But this is not economically viable due to the low market price of pig iron. Silicon rich iron alloys have higher value than pig iron, and BR typically contains 5–15% silicon oxide.
Halvor Dalaker, Casper van der Eijk
openalex   +3 more sources

From the waste: High selective recovery of scandium REEs from the bauxite residue

open access: goldResults in Engineering
Bauxite residue (red mud) is a waste material from alumina refineries in the Bayer process, containing significant quantities of valuable metals, notably scandium (Sc).
Ali Dawood Salman   +9 more
doaj   +2 more sources

Eco-efficient treatment of hazardous bauxite liquid-residue using acid-activated clays

open access: yesCleaner 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

Fixed-bed column study for the remediation of the bauxite-liquid residue using acid-activated clays and natural clays

open access: yesHeliyon, 2023
Large amounts of bauxite-liquid residue are generated during the production of aluminium, which has detrimental effects on human and environmental health.
Daniel Dodoo   +3 more
doaj   +1 more source

Viable Scandium Extraction from Bauxite Residue at Pilot Scale

open access: yesMaterials 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   +1 more source

A calculator for valorizing bauxite residue in the cement industry

open access: yesCleaner Materials, 2021
A computational tool using Microsoft Excel was developed to identify opportunities to repurpose bauxite residue as a raw material in the production of Portland cement.
Michael Di Mare   +7 more
doaj   +1 more source

The Efficient Use of Sulfuric Acid in Bauxite Residue Leaching

open access: yesMaterials Proceedings, 2023
Bauxite residue (BR), an alkaline industrial waste, is a major byproduct of the alumina production process known as the Bayer process. The Bayer process generates a byproduct known as bauxite residue (red mud). This residue was leached with sulfuric acid
Aikaterini Toli   +6 more
doaj   +1 more source

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