[HTML][HTML] Flotation of copper oxide minerals: A review

Q Feng, W Yang, S Wen, H Wang, W Zhao… - International Journal of …, 2022 - Elsevier
Copper oxide minerals are important copper resources, which include malachite, azurite,
chrysocolla, cuprite, etc. Flotation is the most widely used method for the enrichment of …

The pH dependent surface charging and points of zero charge. VII. Update

M Kosmulski - Advances in Colloid and Interface Science, 2018 - Elsevier
The pristine points of zero charge (PZC) and isoelectric points (IEP) of metal oxides and IEP
of other materials from the recent literature, and a few older results (overlooked in previous …

Adsorption of a novel reagent scheme on scheelite and calcite causing an effective flotation separation

Y Gao, Z Gao, W Sun, Z Yin, J Wang, Y Hu - Journal of colloid and interface …, 2018 - Elsevier
The efficient separation of scheelite from calcium-bearing minerals, especially calcite,
remains a challenge in practice. In this work, a novel reagent scheme incorporating a …

[HTML][HTML] Interactions between bubble and particles of key minerals of diasporic bauxite through the extended DLVO theory

N Zhang, T Pang, R Han, S Chen, Z Li, Y Yu… - International Journal of …, 2022 - Elsevier
The flotation of diasporic bauxite is to separate diaspore (valuable mineral) from
aluminosilicate minerals (gangue minerals, mainly including kaolinite, illite and pyrophyllite) …

Surface modification of malachite with ethanediamine and its effect on sulfidization flotation

Q Feng, W Zhao, S Wen - Applied Surface Science, 2018 - Elsevier
Ethanediamine was used to modify the mineral surface of malachite to improve its
sulfidization and flotation behavior. The activation mechanism was investigated by …

Prediction of grade and recovery in flotation from physicochemical and operational aspects using machine learning models

A Gomez-Flores, GW Heyes, S Ilyas, H Kim - Minerals Engineering, 2022 - Elsevier
Abstract Machine learning (ML) models for predicting flotation behavior focus on operational
variables. Fundamental aspects, eg, physicochemical variables that describe mineral …

A comprehensive review on the recovery of copper values from copper slag

T Kundu, S Senapati, SK Das, SI Angadi, SS Rath - Powder Technology, 2023 - Elsevier
Copper slags are a by-product generated from copper extraction. Rich in iron oxide, silica,
calcium oxide, and alumina, copper slags are mostly stockpiled or used in landfill …

Cu (I)/Cu (II) mixed-valence surface complexes of S-[(2-hydroxyamino)-2-oxoethyl]-N, N-dibutyldithiocarbamate: Hydrophobic mechanism to malachite flotation

S Liu, H Zhong, G Liu, Z Xu - Journal of Colloid and Interface Science, 2018 - Elsevier
Hypothesis Hydroxamate and sulfhydryl surfactants are effective collectors for flotation of
copper minerals. The combination application of hydroxamate and sulfhydryl collectors has …

Copper sulfide species formed on malachite surfaces in relation to flotation

Q Feng, W Zhao, S Wen, Q Cao - Journal of Industrial and Engineering …, 2017 - Elsevier
The interaction between sulfide ion species and malachite surfaces in relation to flotation
was studied in this work using X-ray photoelectron spectroscopy analysis, surface …

An evaluation of hydroxamate collectors for malachite flotation

C Marion, A Jordens, R Li, M Rudolph… - Separation and …, 2017 - Elsevier
Copper oxide minerals, such as malachite, do not often respond well to traditional copper
sulphide collectors, and require alternative flotation schemes. Hydroxamic acid collectors …