A review on the research of hydrometallurgical leaching of low-grade complex chalcopyrite

G Ji, Y Liao, Y Wu, J Xi, Q Liu - Journal of Sustainable Metallurgy, 2022 - Springer
Chalcopyrite is the main mineral source of copper ore for extracting and producing copper.
However, with the continuous mining of copper ore, the grade of chalcopyrite decreases …

Gangues and clays minerals as rate-limiting factors in copper heap leaching: a review

N Toro, Y Ghorbani, MD Turan, P Robles, E Gálvez - Metals, 2021 - mdpi.com
Heap leaching is a firm extractive metallurgical technology facilitating the economical
processing of different kinds of low-grade ores that are otherwise not exploited …

Application and mechanism analysis of functionalized ionic liquids in copper regeneration from electroplating sludge

F Li, X Xu, C Cao, Z Yang, G Wang, T Li, Y Pu… - Journal of Cleaner …, 2023 - Elsevier
Hydrometallurgy is the main method to regenerate valuable metals from electroplating
sludge and reduce its environmental hazards. As a key step to efficiently recover metals, it is …

Behavior and kinetics of copper during oxygen pressure leaching of complex chalcopyrite without acid

G Ji, Y Liao, J Xi, Q Liu, Y Wu, H Ma, J Li - Journal of Sustainable …, 2023 - Springer
In this paper, a novel process leaching complex chalcopyrite without acid under oxygen
pressure is proposed, and the leaching behavior and kinetic characteristics of copper in the …

Effect of temperature, oxygen partial pressure and calcium lignosulphonate on chalcopyrite dissolution in sulfuric acid solution

Y Bai, W Wei, XIE Feng, DK Lu, K Jiang - Transactions of Nonferrous …, 2022 - Elsevier
The pressure leaching mechanism of chalcopyrite was studied by both leaching tests and in-
situ electrochemical measurements. The effects of leaching temperature, oxygen partial …

Eco-friendly oxidation leaching from chalcopyrite powder and kinetics assisted by sodium chloride in organic acid media

H Chen, J He, L Zhu, B Liu, K Zhou, J Xu… - Advanced Powder …, 2022 - Elsevier
The realization of efficient leaching of metal elements in chalcopyrite is of great significance
to global industrial development. In this work, an eco-friendly and efficient leaching process …

Decomposition of organic additives in the oxidative chalcopyrite leaching with hydrogen peroxide

A Ruiz-Sánchez, GT Lapidus - Minerals Engineering, 2022 - Elsevier
Recent investigations have shown that the addition of short-chain organic additives
(methanol, ethanol, ethylene glycol, acetone, isopropanol, formic and acetic acids) …

Bioleaching residue-introduced thermal activation-leaching of refractory chalcopyrite

Y Zhang, L Zhang, G Wang, L Shen, S Hu, L Shen… - Minerals …, 2023 - Elsevier
Abstract Currently, about 10%− 20% of the world's copper production comes from
bioleaching processes. On the one hand, the bioleaching residues accumulated over the …

Extraction of copper from chalcopyrite with potassium dichromate in 1-ethyl-3-methylimidazolium hydrogen sulfate ionic liquid aqueous solution

J Hu, F Zi, G Tian - Minerals Engineering, 2021 - Elsevier
Developing new and sustainable leaching system with limited release of pollutant and low
acid and energy consumption is a challenge for copper extraction from chalcopyrite. In this …

Hydrometallurgical processing of chalcopyrite: A review of leaching techniques

DM Cheje Machaca, AB Botelho Jr… - International Journal of …, 2024 - Springer
Copper, an essential metal for the energy transition, is primarily obtained from chalcopyrite
through hydrometallurgical and pyrometallurgical methods. The risks and harmful impacts of …