The dissolution and passivation mechanism of chalcopyrite in bioleaching: An overview

H Zhao, Y Zhang, X Zhang, L Qian, M Sun, Y Yang… - Minerals …, 2019 - Elsevier
Chalcopyrite (CuFeS 2) is the most abundant copper-containing resource in the earth and is
also widely distributed in solid wastes and secondary resources. Biohydrometallurgy …

Metals extraction from sulfide ores with microorganisms: the bioleaching technology and recent developments

W Sajjad, G Zheng, G Din, X Ma, M Rafiq… - Transactions of the Indian …, 2019 - Springer
Nowadays, due to fast global industrial progress and near diminution of high-grade ore
reserves, there has been massive call to cost-effectively process the resources of low-grade …

Chalcopyrite bioleaching in chloride media: A mini-review

FL Martins, VA Leão - Hydrometallurgy, 2023 - Elsevier
The growing worldwide demand for copper implies the need to process increased amounts
of its ores. Chalcopyrite is the most abundant copper mineral, but due to its refractory nature …

Acidophilic bioleaching: a review on the process and effect of organic–inorganic reagents and materials on its efficiency

M Jafari, H Abdollahi, SZ Shafaei… - Mineral processing …, 2019 - Taylor & Francis
Bio-hydrometallurgical applications have been receiving more attention globally for
processing of several metal bearing wastes. Developments in bioleaching enable this …

Bioleaching of copper from chalcopyrite ore at higher NaCl concentrations

AB Vakylabad, S Nazari, E Darezereshki - Minerals Engineering, 2022 - Elsevier
The formation of hydrolyzed ferric iron (Fe (III)) as jarosite could limit the bioleaching of
copper and significantly lower the dissolution rate of low-grade chalcopyrite ore. Thus, to …

Active destruction of pyrite passivation by ozone oxidation of a biotic leaching system

X Lv, H Zhao, Y Zhang, Z Yan, Y Zhao, H Zheng, W Liu… - Chemosphere, 2021 - Elsevier
Although pyrite bio-dissolution plays an important role in the processing of sulfide ores, the
formation of passivation film inhibited the further dissolution of sulfide ores. In order to …

An integrated insight into bioleaching performance of chalcopyrite mediated by microbial factors: Functional types and biodiversity

J Tao, X Liu, X Luo, T Teng, C Jiang, L Drewniak… - Bioresource …, 2021 - Elsevier
Six artificial communities with different function or biodiversity were reconstructed by six
typical bioleaching species for chalcopyrite leaching. Absence of sulfur oxidizers in …

Reductive dissolution by waste newspaper for enhanced meso-acidophilic bioleaching of copper from low grade chalcopyrite: A new concept of biohydrometallurgy

S Panda, A Biswal, S Mishra, PK Panda, N Pradhan… - Hydrometallurgy, 2015 - Elsevier
Dumping of low-grade chalcopyrite encompasses several environmental problems. Despite
slow dissolution rate, meso-acidophilic bioleaching is preferred for the extraction of copper …

Enhancing the Leaching of Chalcopyrite Using Acidithiobacillus ferrooxidans under the Induction of Surfactant Triton X-100

R Zhang, C Sun, J Kou, H Zhao, D Wei, Y Xing - Minerals, 2018 - mdpi.com
Chalcopyrite is the richest copper sulfide mineral in the world, but it is also the most resistant
to biohydrometallurgical processing. To promote the bioleaching of chalcopyrite, a nonionic …

Copper recovery from low-grade copper sulfides using bioleaching and its community structure succession in the presence of Sargassum

W Chen, H Tang, S Yin, L Wang, M Zhang - Journal of Environmental …, 2024 - Elsevier
Bioleaching characteristics and bacterial community structure were studied during low-
grade copper sulfide ores bioleaching in the presence of pretreated Sargassum (PSM) …