Analysis of slag chemistry in WEEE smelting using experimental and modelling study of the “CuO0.5”-ZnO-FeO-FeO1.5-CaO-SiO2-AlO1.5 system in equilibrium with Cu metal

Khartcyzov, Georgii; Kleeberg, Cora; Shevchenko, Maksym; Shishin, Denis; Jak, Evgueni

doi:10.1016/j.ceramint.2024.04.380

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.04.380

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Analysis of slag chemistry in WEEE smelting using experimental and modelling study of the “CuO0.5”-ZnO-FeO-FeO1.5-CaO-SiO2-AlO1.5 system in equilibrium with Cu metal

Georgii Khartcyzov,

Cora Kleeberg,

Maksym Shevchenko

et al.

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Cited by 3 publications

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Equilibrium Distribution of Pb Between Copper and Slags in Simulated Black Copper Smelting

Kan,

Chen

2024

J. Sustain. Metall.

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Equilibrium Distribution of Pb Between Copper and Slags in Simulated Black Copper Smelting

Kan,

Chen

2024

J. Sustain. Metall.

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The power of computational thermochemistry in high-temperature process design and optimization: Part 2 – Pyrometallurgical process modeling using FactFlow

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Castillo-Sánchez,

Mahue

et al. 2025

Calphad

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Thermodynamic Modeling and Research for Processing Complex Concentrate Blends in Custom Copper Smelters for Maximum Revenue

Shishin,

Tripathi,

Sineva

et al. 2024

Processes

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Custom copper smelters, which are dependent on purchased concentrates, are facing increasing economic pressures amid falling treatment and refining fees. With the declining availability of high-grade, low-impurity concentrates, copper demand is expected to surge to support the transition to renewable energy. This study, which is based on recent observations of Chinese custom smelters, examines their strategies to address the challenge of purchasing concentrates at record-low treatment and refining charges. By investing in slag flotation technology, smelters can enhance copper, gold, and silver recovery. By blending high-grade and low-grade concentrates, they can capitalize on the gap between the recoverable and payable metals, which are often referred to as “free metals”, while also benefiting from byproducts, mainly sulfuric acid. While this approach offers economic opportunities, it introduces operational complexities. To mitigate these, laboratory testing, combined with advanced digital predictive tools based on thermodynamics, is crucial. This study demonstrates the use of thermodynamic models supported by experimental work for analyzing furnace operations. FactSage® software and a custom database are employed to define the operating window of two common flowsheets: (1) flash smelting + flash converting and (2) bottom-blown smelting + bottom-blowing converting.

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Analysis of slag chemistry in WEEE smelting using experimental and modelling study of the “CuO0.5”-ZnO-FeO-FeO1.5-CaO-SiO2-AlO1.5 system in equilibrium with Cu metal

Cited by 3 publications

References 56 publications

Equilibrium Distribution of Pb Between Copper and Slags in Simulated Black Copper Smelting

Equilibrium Distribution of Pb Between Copper and Slags in Simulated Black Copper Smelting

The power of computational thermochemistry in high-temperature process design and optimization: Part 2 – Pyrometallurgical process modeling using FactFlow

Thermodynamic Modeling and Research for Processing Complex Concentrate Blends in Custom Copper Smelters for Maximum Revenue

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