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Unlocking Strategic Metals from Zinc Smelting Dust: Ultrasound-ClO₂ Synergy and Atomic-Scale Leaching Mechanisms

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Innovative ultrasound-assisted ClO2 leaching enhances metal recovery in zinc smelting dust, suggesting a low-energy solution.

Achieved leaching efficiencies of Zn at 98.16%, In at 93.18%, and Ge at 92.78%, significantly improving recovery rates.
Using specific process parameters, the method increased efficiency over traditional leaching by 6.43%-8.33% and reduced oxidizer use by 40%.
Observational analysis of mineral interactions revealed charge transfer mechanisms through density functional theory, enhancing leaching efficacy.
The ultrasound process's dual effects may enable broader applications in metal recovery, highlighting potential for sustainable practices.

Xin et al. (2025) studied this question.

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