Advancement in electrokinetic processes for efficient critical metal Extraction: Unveiling the potential of electrokinetic In-Situ leaching (EK-ISL) in mining and mineral processing DOI
Nimila Dushyantha,

Chamila Jinendra Nanayakkara,

Gayithri Niluka Kuruppu

et al.

Minerals Engineering, Journal Year: 2024, Volume and Issue: 213, P. 108744 - 108744

Published: May 22, 2024

Language: Английский

Green steel from red mud through climate-neutral hydrogen plasma reduction DOI Creative Commons
Matic Jovičević‐Klug, Isnaldi Rodrigues de Souza Filho, Hauke Springer

et al.

Nature, Journal Year: 2024, Volume and Issue: 625(7996), P. 703 - 709

Published: Jan. 24, 2024

Abstract Red mud is the waste of bauxite refinement into alumina, feedstock for aluminium production 1 . With about 180 million tonnes produced per year , red has amassed to one largest environmentally hazardous products, with staggering amount 4 billion accumulated on a global scale Here we present how this can be turned valuable and sustainable ironmaking using fossil-free hydrogen-plasma-based reduction, thus mitigating part steel-related carbon dioxide emissions by making it available several hundred green steel. The process proceeds through rapid liquid-state chemical partitioning, as well density-driven viscosity-driven separation between metal oxides. We show underlying reactions, pH-neutralization processes phase transformations during surprisingly simple fast reduction method. approach establishes toxic-waste treatment from mitigate greenhouse gas steelmaking.

Language: Английский

Citations

70
Toward sustainable green alumina production: A critical review on process discharge reduction from gibbsitic bauxite and large-scale applications of red mud DOI
Guotao Zhou, Yilin Wang, Tiangui Qi

et al.

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(2), P. 109433 - 109433

Published: Feb. 3, 2023

Language: Английский

Citations

69
A green red mud utilization process for Fe, Al, and Si extraction and NaA–zeolite synthesis for wastewater treatment DOI
Xintong Li, Zhong Wei, Zhanfang Cao

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162481 - 162481

Published: Jan. 1, 2025

Language: Английский

Citations

2
Efficient utilization of red mud waste via stepwise leaching to obtain α-hematite and mesoporous γ-alumina DOI Creative Commons
Zahra Karimi, Ahmad Rahbar-Kelishami

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: May 26, 2023

Utilizing the red mud sustainably is now a challenging issue. Red due to its wide production, presence of some radioactive elements, high alkalinity, and salinity, has dramatic potential contaminate soil groundwater. Notwithstanding drawbacks, consists several including Ca, Al, Ti, Si, Fe, in various mineral forms. In this study, stepwise leaching was applied as proper method separate purify main valuable elements using available affordable HCl. The pre-leaching step under optimized conditions HCl (0.2 M) at room temperature for 2 h removed 89% calcium content from mud. To selectively remove solid silica, residue treated with concentrated (3.0 M, L/S 20 mL/g) 95 °C, resulting dissolution iron aluminum up 90% efficiency. After precipitation Fe3+ Al3+, they were characterized FT-IR, BET, EDS, XRD, SEM TEM monographs, confirming formation nanosized hematite (α-Fe2O3) mesoporous gamma alumina (γ-Al2O3). Consequently, inexpensive converted into highly nano-sized metal oxides simple, sustainable techniques cheap reagents. Moreover, technique generates lowest amounts waste during process all reagents can be recycled further uses, making utilization.

Language: Английский

Citations

24
Properties, hazards and valuable metal recovery technologies of red mud: A review DOI

Peixin Du,

Peng Wang, Xueqian Zhang

et al.

Particuology, Journal Year: 2024, Volume and Issue: 93, P. 328 - 348

Published: July 27, 2024

Language: Английский

Citations

15
Synthesis and characterization of new acid-activated red mud-metakaolin geopolymers and comparison with their alkaline counterparts DOI
Alessio Occhicone,

Stanislao Giorgio Graziuso,

Emmanuel De Gregorio

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 435, P. 140492 - 140492

Published: Jan. 1, 2024

Language: Английский

Citations

14
A review of biomass-based adsorption for rare earth elements recovery DOI

Victor Famobuwa,

Deniz Talan,

Oishi Sanyal

et al.

Journal of Rare Earths, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

1
Desulfurization, desilication, and the separation and recovery of iron from bauxite: A review DOI
Qinglong Fan, Shuai Yuan, Rui Han

et al.

Minerals Engineering, Journal Year: 2025, Volume and Issue: 228, P. 109315 - 109315

Published: April 18, 2025

Language: Английский

Citations

1
Selective separation of aluminum, silicon, and titanium from red mud using oxalic acid leaching, iron precipitation and pH adjustments with calcium carbonate DOI

Wanyan Li,

Ning Wang,

Fanghai Lu

et al.

Hydrometallurgy, Journal Year: 2023, Volume and Issue: 223, P. 106221 - 106221

Published: Oct. 10, 2023

Language: Английский

Citations

19
A critical review on separation and extraction of scandium from industrial wastes: Methods, difficulties, and mechanism DOI

Jingyi Chi,

Cuizhen Wang, Guangzhu Zhou

et al.

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(5), P. 111068 - 111068

Published: Sept. 21, 2023

Language: Английский

Citations

14