The depression of pyrite in selective flotation by different reagent systems–A Literature review

Y Mu, Y Peng, RA Lauten - Minerals Engineering, 2016 - Elsevier
Pyrite is a gangue mineral widely associated with valuable minerals. It is problematic to deal
with in differential flotation because it easily reports to flotation concentrates. Pyrite may float …

[HTML][HTML] Lime use and functionality in sulphide mineral flotation: A review

M Zanin, H Lambert, CA Du Plessis - Minerals Engineering, 2019 - Elsevier
Lime (calcium oxide or calcium hydroxide) is arguably the most common reagent used in the
extractive minerals processing industry. As an effective and economic pH modifier, lime is …

Advances in depressants for flotation separation of Cu-Fe sulfide minerals at low alkalinity: A critical review

Q Feng, W Yang, M Chang, S Wen, D Liu… - International Journal of …, 2024 - Springer
The flotation separation of Cu-Fe sulfide minerals at low alkalinity can be achieved using
selective depressants. In the flotation system of Cu-Fe sulfide minerals, depressants usually …

Froth flotation of chalcopyrite/pyrite ore: a critical review

CI Castellón, N Toro, E Gálvez, P Robles, WH Leiva… - Materials, 2022 - mdpi.com
In the present work an intense bibliographic search is developed, with updated information
on the microscopic fundamentals that govern the behavior of flotation operations of …

Eco-friendly and biodegradable depressants in chalcopyrite flotation: A review

AK Saim, FK Darteh - Mineral Processing and Extractive Metallurgy …, 2023 - Taylor & Francis
Depressants are critical reagents for the selective separation of minerals in froth flotation.
They serve a vital role in preferentially making the gangue minerals hydrophilic and prevent …

Selective separation of chalcopyrite from pyrite with a novel non-hazardous biodegradable depressant

SA Khoso, Y Hu, F Lyu, R Liu, W Sun - Journal of Cleaner Production, 2019 - Elsevier
Pyrite depression in copper ore flotation often requires large doses of inorganic depressants
that lead to high toxicity, high costs, and low selectivity. Thus, this study offers a novel pyrite …

Effect of calcium hypochlorite on flotation separation of covellite and pyrite

W Yin, B Yang, Y Fu, F Chu, J Yao, S Cao, Z Zhu - Powder Technology, 2019 - Elsevier
The effect of calcium hypochlorite (Ca (ClO) 2) on the flotation separation of covellite and
pyrite with ammonium dibutyl dithiophophate (ADD) has been investigated through micro …

Selective separation of chalcopyrite from pyrite using an acetylacetone-based lime-free process

S Wu, J Wang, L Tao, R Fan, C Wang, W Sun… - Minerals Engineering, 2022 - Elsevier
In the flotation separation of chalcopyrite and pyrite, the commonly used high-lime process
often causes problems such as losses of precious metals, blockage in pipelines and …

Pyrogallic acid as depressant for flotation separation of pyrite from chalcopyrite under low-alkalinity conditions

G Han, S Wen, H Wang, Q Feng, X Bai - Separation and Purification …, 2021 - Elsevier
Effective and low-cost flotation separation of chalcopyrite and pyrite has always been a
challenge in the minerals processing industry. Traditional depressants in a Cu–Fe sulfide …

The synergistic depression of lime and sodium humate on the flotation separation of sphalerite from pyrite

Q Wei, L Dong, F Jiao, W Qin, Z Pan, Y Cui - Minerals Engineering, 2021 - Elsevier
Pyrite depression in flotation separation of Zn-S mixed concentrate has become a difficult
and serious problem. This work introduces a non-toxic and efficient depressant reagent …