Electrocatalytic activities of iron-supported N-doped porous carbon towards the oxygen/hydrogen evolution reaction.

Renewable Energy, Journal Year: 2024, Volume and Issue: 237, P. 121788 - 121788

Published: Nov. 1, 2024

Language: Английский

A low-cost process for complete utilization of bauxite residue

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 356, P. 120751 - 120751

Published: March 26, 2024

Cost-effective treatment or even valorization of the bauxite residue (red mud) from alumina industry is in demand to improve their environmental and economic liabilities. This study proposes a strategy that provides near-complete conversion valuable products. The first step involves dilute acid leaching, which allowed fractionation raw residues into (1) an aqueous fraction rich silica aluminium (2) solid iron, titanium rare earth elements. For proposed process, 91% original silicon, 67% aluminium, 78% scandium 69% cerium were recovered. initial cost evaluation suggested this approach profitable with gross margin 167 $US per tonne. "Residue2Product" should be considered for large-scale practices as one most economical sustainable solutions liability industry.

Language: Английский

A comprehensive multiscale review of shaft furnace and reformer in direct reduction of iron oxide

Minerals Engineering, Journal Year: 2024, Volume and Issue: 222, P. 109123 - 109123

Published: Dec. 7, 2024

Language: Английский