Recent advances in electrochemical techniques for characterizing surface properties of minerals

J Wang, H Zeng - Advances in Colloid and Interface Science, 2021 - Elsevier
Electrochemical techniques are very useful tools for characterizing the surface properties of
natural minerals involved in electrochemical reactions. This work reviews the recent …

The flotation separation of chalcopyrite and galena: crystal, surface, floatability and reagents

X Zhang, Y Zhu, PP Mkhonto, Y Meng… - Separation & …, 2024 - Taylor & Francis
Chalcopyrite and galena are primary raw materials for producing Cu and Pb metals,
respectively. Flotation is still the main method to recover these two minerals. So far, lots of …

Depression of lead-activated sphalerite by pyrite via galvanic interactions: Implications to the selective flotation of complex sulfide ores

K Aikawa, M Ito, T Segawa, S Jeon, I Park… - Minerals …, 2020 - Elsevier
Complex sulfide ores are typically mixtures of various sulfide minerals like sphalerite (ZnS),
chalcopyrite (CuFeS 2), galena (PbS), pyrite (FeS 2), and barite (BaSO 4) and processed by …

A novel synthetic polymer depressant for the flotation separation of chalcopyrite and galena and insights into its interfacial adsorption mechanism

X Zhang, W **ong, L Lu, Z Qian, Y Zhu… - Separation and …, 2021 - Elsevier
In this research, to achieve green effective separation of chalcopyrite and galena, a novel
synthetic depressant, dithiocarbamated poly (acrylamide-allyamine)(DTC-PAA), was …

Flotation performance of chalcopyrite in the presence of an elevated pyrite proportion

RLJ Lee, X Chen, Y Peng - Minerals Engineering, 2022 - Elsevier
Recently, the copper industry is facing a challenge in dealing with low-grade copper ores
and the flotation performance deteriorates when a copper ore with an elevated pyrite …

Electrochemical oxidation of pyrite in pH 2 electrolyte

Z Tu, J Wan, C Guo, C Fan, T Zhang, G Lu… - Electrochimica …, 2017 - Elsevier
The oxidation of pyrite under acidic conditions, an important process leading to the formation
of acid mine drainage, has been the subject of intense research yet remains incompletely …

Effect of regulating dissolved oxygen concentration in pulp with aerated gas on pyrite flotation

X Luo, W Yang, S Wen, Q Lin, D Wei, C Li, Y Zhang… - Minerals …, 2023 - Elsevier
Moderate oxidation is beneficial to the flotation of sulfide ores, but the exact dissolved
oxygen (DO) concentration suitable for flotation is still unclear. In this work, a self–made …

Crystal face-dependent pyrite oxidation: An electrochemical study

Y Li, Y Peng, Z Wei, X Yang, AR Gerson - Applied Surface Science, 2023 - Elsevier
The oxidation of pyrite has attracted significant attention due to its predominant contribution
to the serious environmental issue of acid mine drainage (AMD). However, relatively few …

The role of nanobubbles in the precipitation and recovery of organic-phosphine-containing beneficiation wastewater

W **ao, S Ke, N Quan, L Zhou, J Wang, L Zhang… - Langmuir, 2018 - ACS Publications
Dissolved air flotation (DAF) is broadly applied in wastewater treatment, especially for the
recovery of organic pollution with low concentration. However, the mechanism of interaction …

The pollution characteristics and causes of dual sources–iron in abandoned underground coal mines: A literature review

L Zhou, JY Zhang, XQ Zhu, DM Xu, SS Zheng - Journal of Cleaner …, 2024 - Elsevier
Iron (Fe) pollution is an imporant environmental issue in the internal spaces of abandoned
coal mines, posing a severe threat to human health and the ecosystem. The primary sources …