Study on Recovery of Lead-Zinc Tailing Ore by Electrochemical Flotation

Zhou, Gui Ying; Li, Wen Juan; Chen, Yong; Song, Yong Sheng

doi:10.4028/www.scientific.net/amm.675-677.1451

Cited by 5 publications

(3 citation statements)

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“…5 Many domestic and foreign researchers examined the technologies and principles of separating pyrite and arsenopyrite. Flotation is extensively used and can be classified in four types: heating flotation, oxidants, 6 electrochemical oxidation, 7 and inhibitors. 8 The increased processing volumes of As-containing sulfides and stringent quality requirements for concentrates increased the prominence of inhibitors, which can be divided in two categories: inorganic 9 and organic.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite

Sun

Deng

et al. 2022

ACS Omega

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The selective action mechanism of sodium butyl xanthate (BX), ammonium salt (NH4 +), and sodium m-nitrobenzoate (m-NBO) on pyrite and arsenopyrite was examined by experiments and quantum chemistry. The experiments show that under alkaline conditions, ammonium salt (NH4 +) and m-NBO can have a strong inhibitory effect on arsenopyrite. At pH 11, the recovery rate of arsenopyrite reduces to 16%. The presence of ammonium salt (NH4 +) and m-NBO reduces the adsorption energy of BX on arsenopyrite to ΔE = −23.23 kJ/mol, which is far less than the adsorption energy on the surface of pyrite, ΔE = −110.13 kJ/mol. The results are helpful to understand the synergistic mechanism of the agent on the surface of arsenopyrite and pyrite, thus providing a reference for the selective separation of arsenopyrite.

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Section: Introductionmentioning

confidence: 99%

Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite

Sun

Deng

et al. 2022

ACS Omega

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“…Aggregate continues to be increased as more concrete is consumed all over the world [ 22 , 23 ]. Since stone and sand are non-renewable resources, the traditional ways to produce aggregate is not sustainable [ 24 , 25 ]. Utilizing ore tailings as valuable concrete raw materials is a feasible treating method, which has received increasing attention for the past years [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Applications for Utilizing Antimony Tailing Coarse Aggregate (ATCA) in Concrete: Characteristic of ATCA and Toxicity Risks of Concrete

Wang

Zhang

et al. 2021

Materials

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In this research, the sustainable applications for utilizing antimony tailing coarse aggregate (ATCA) in concrete is investigated. Comprehensive verifications were performed by a series of experiments on the characteristic of ATCA and the toxicity risks of concrete. Firstly, a real case study of utilization of ATCA as a complete substitute for natural coarse aggregate (NCA) in high strength concrete was conducted. Then, chemical composition of ATCA was tested. It is demonstrated that the essential mineral is SiO2 and the lithology of ATCA is quartzite. The mechanical properties, coarse quality of ATCA, and NCA were studied and compared. The compressive strength, splitting tensile strength, and compressive elastic modulus of ATWR are 221.51 MPa, 5.93 MPa, and 3.33 × 104 MPa, which are 1.31, 2.22, 1.40 times of that of NR, respectively. All of the quality control indices of ATCA meet the requirements of the current industry standards of China. Finally, the toxicity risks of ATCA concrete were investigated. It is illustrated that the leaching of main heavy metals including Sb, As, Hg, Pb, Cd, and Zn in the ATCA concrete under different pH conditions are below the regulatory limits. The utilization of antimony tailing has significant environmental and economic benefits.

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“…This experiment proves that arsenite can be effectively separated by potential regulation. Zhou et al [10] conducted a flotation test study on a complex lead-zinc ore in Jing Dong Tailings Company of Fujian province. The result showed that in the electrochemical potential controlling flotation processing, using DDTC as collector, the separation potential range of galena and sphalerite with pyrrhotite can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cu2+ on the Activation to Muscovite Using Electrochemical Pretreatment

Wang

Xiao

et al. 2020

Minerals

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In this study, electrochemistry pretreatment flotation of muscovite was carried out and the flotation behavior and mechanism of muscovite in the system of sodium oleate and Cu2+ion was characterized by solution pH value detection, solution conductivity detection, zeta potential, infrared spectrum and the electronic energy spectrum. The results indicated that under the conditions of muscovite mass of 10.00 g, pulp mass concentration of 13.33%, flotation speed of 1750 r/min, sodium oleate concentration of 9.20 × 10−4 mol/L and Cu2+ concentration of 6 × 10−5 mol/L, electrochemical pretreatment of Cu2+ could strengthen the activation of muscovite. Electrochemical pretreatment of Cu2+ solution can inhibit the hydrolysis of copper ions, increase the content of Cu2+ in the solution, strengthen the adsorption of Cu2+ on the muscovite surface, and enhance the electrostatic adsorption of sodium oleate on the muscovite surface, thereby strengthening the physical and chemical adsorption of sodium oleate on the muscovite surface.

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Study on Recovery of Lead-Zinc Tailing Ore by Electrochemical Flotation

Cited by 5 publications

References 0 publications

Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite

Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite

Sustainable Applications for Utilizing Antimony Tailing Coarse Aggregate (ATCA) in Concrete: Characteristic of ATCA and Toxicity Risks of Concrete

Effect of Cu2+ on the Activation to Muscovite Using Electrochemical Pretreatment

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