Making waste profitable: Efficient recovery of metallic iron from jarosite residues

Chinese Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: 71, P. 66 - 76

Published: April 27, 2024

Language: Английский

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Mechanochemical removal and recovery of fluorine from hazardous fluorine-containing solid waste: Experiments and mechanisms

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114280 - 114280

Published: Sept. 1, 2024

Language: Английский

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Selective extraction of zinc from high iron-bearing zinc calcine by reduction and magnetization roasting

Transactions of Nonferrous Metals Society of China, Journal Year: 2023, Volume and Issue: 33(11), P. 3514 - 3528

Published: Nov. 1, 2023

A novel process that combined reduction roasting with magnetization was developed to intensify the decomposition of zinc ferrite for selective extraction from high iron-bearing calcine. The mechanism ferritewas investigated in detail by thermodynamics analysis and experiments. results indicated 94.65% decomposed into oxide ferrous under optimal conditions 8 vol.% CO, 750 °C, 50 CO/(CO+CO2), 90 min. generated further converted ferriferrous an air atmosphere at 450 °C 30 After that, 93.62% contained calcine could be selectively extracted low acid leaching, whereas more than 90% iron concentrated leaching slag form magnetite, which recovered subsequent magnetic separation.

Language: Английский

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Decoupling of sulfation reactions to enhance zinc extraction from electric arc furnace dust: Unveiling the significance of O2 activation and mechanistic insights

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 359, P. 130518 - 130518

Published: Nov. 13, 2024

Language: Английский

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