Assessment of the floatability of chalcopyrite, molybdenite and pyrite using biosolids and their main components as collectors for greening the froth flotation of copper sulphide ores

Reyes-Bozo, Lorenzo; Higueras, Pablo; Godoy-Faúndez, Alex; Sobarzo, Francisco; Sáez‐Navarrete, César; Vásquez-Bestagno, Jorge; Herrera-Urbina, R.

doi:10.1016/j.mineng.2014.04.004

Cited by 22 publications

(7 citation statements)

References 37 publications

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“…At laboratory scale, humic acid and a mixture of humic acid and industrial collector give similar metallurgical indicators, namely copper recovery and grade of the concentrate. Further, humic acids exhibit similar collector ability for chalcopyrite and molybdenite as that of an industrial collector reagent (for example, Aero 6697 promoter or a xanthate type collector) whereas biosolids show more affinity for pyrite (Reyes-Bozo et al, 2014b).…”

Section: Zeta Potentialmentioning

confidence: 99%

Adsorption of biosolids and their main components on chalcopyrite, molybdenite and pyrite: Zeta potential and FTIR spectroscopy studies

Reyes-Bozo

Escudey

Vyhmeister

et al. 2015

Minerals Engineering

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Section: Zeta Potentialmentioning

confidence: 99%

Adsorption of biosolids and their main components on chalcopyrite, molybdenite and pyrite: Zeta potential and FTIR spectroscopy studies

Reyes-Bozo

Escudey

Vyhmeister

et al. 2015

Minerals Engineering

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“…Unfortunately, some of these chemicals are expensive and may affect the environment as well as human health. 1 Thus, the use of environment-friendly reagents, such as tannins, is a sustainable alternative. Tannins can be defined as polyphenolic groups that can be derived from the breakdown of plant biomass, containing fruits, roots, seeds, and bark.…”

Section: Introductionmentioning

confidence: 99%

Behavior and Mechanism of Tannic Acid Adsorption on the Calcite Surface: Isothermal, Kinetic, and Thermodynamic Studies

Tangarfa¹,

Hassani²,

Alaoui

2019

ACS Omega

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Tannic acid is a calcite flotation agent widely used in mineral processing. To better understand the physicochemical reactivity of tannic acid toward calcite, the present work focused on studying the mechanisms involved during the adsorption process. Hence, in order to determine the optimal physicochemical parameters, tannic acid adsorption onto calcite was investigated at various experimental conditions such as contact time, initial tannic acid concentration, solution pH, particle size, and temperature. The obtained results showed that the adsorption capacity of tannic acid increased significantly with initial tannic acid concentration. Furthermore, tannic acid adsorption onto calcite was highly dependent on solution pH, and the optimal adsorption amount was found to be at pH 8. Therefore, the behavior controlling the studied adsorption process could be attributed to ion exchange. Moreover, the adsorption mechanism has been determined by isothermal, kinetic, and thermodynamic studies. Thus, the Sips isotherm model was the one that best predicted equilibrium data. Adsorption kinetics followed a pseudo-second-order model, indicating that the adsorption process was controlled by the chemical reaction. The estimated thermodynamic parameters revealed that the adsorption reaction was exothermic in nature and the system entropy decreased nonsignificantly during this process. Based on these results, the study of the physicochemical interaction between tannins and carbonates has potential application in mineral processing as well as in other fields.

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“…A selective collector will make the separation more economical. Enlarging and using the floatability of the two minerals will be a good basis and start in flotation [9]. Qin conducted a great deal of research on the flotation separation of copper/lead concentrate.…”

Section: Introductionmentioning

confidence: 99%

Fundamental Flotation Behaviors of Chalcopyrite and Galena Using O-Isopropyl-N-Ethyl Thionocarbamate as a Collector

Sun

et al. 2018

Minerals

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Copper and lead are two important and widely used metals in industry. Chalcopyrite (CuFeS 2 ) is associated with galena (PbS) in ore, and it has been a research hotspot in separating galena from chalcopyrite by flotation. In this study, the flotation behaviors of chalcopyrite and galena were studied through flotation tests, adsorption measurements, solution chemistry calculation, Fourier transform infrared spectroscopy (FTIR) and molecular dynamics (MD) simulations. The results show that the floatability of chalcopyrite is better than that of galena in the presence of O-isopropyl-N-ethyl thionocarbamate (IPETC), and the recovery difference between chalcopyrite and galena is about 20% when IPETC is 7 × 10 −4 mol/L at pH 9.5, while the floatability difference between the two minerals is significant. Competitive adsorption of OH − and IPETC on mineral surfaces leads to lower floatability of galena than that of chalcopyrite. IPETC is able to remove the hydration layer on mineral surfaces and then adsorb on active sites. The floatability of minerals is enhanced with the increase of their hydrophobicity. This study provides a reference to separate galena from chalcopyrite.

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Assessment of the floatability of chalcopyrite, molybdenite and pyrite using biosolids and their main components as collectors for greening the froth flotation of copper sulphide ores

Cited by 22 publications

References 37 publications

Adsorption of biosolids and their main components on chalcopyrite, molybdenite and pyrite: Zeta potential and FTIR spectroscopy studies

Adsorption of biosolids and their main components on chalcopyrite, molybdenite and pyrite: Zeta potential and FTIR spectroscopy studies

Behavior and Mechanism of Tannic Acid Adsorption on the Calcite Surface: Isothermal, Kinetic, and Thermodynamic Studies

Fundamental Flotation Behaviors of Chalcopyrite and Galena Using O-Isopropyl-N-Ethyl Thionocarbamate as a Collector

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