Study of flotation behavior and mechanism of cervantite activation by copper ions

• Autorzy: Wang J. , Wang Y. , Fu K. , Xu L. , Wang Z. , Sun H. , Xiao J.

Identyfikatory

DOI

https://doi.org/10.5277/ppmp1879

• Języki publikacji: EN

Abstrakty

EN

Copper-ion activation plays a highly important role in cervantite (Sb2O4) flotation. Without metal-ion activation, cervantite cannot be floated by sodium oleate. In this study, flotation tests were conducted to study the effect of Cu2+ on the flotation behaviours of cervantite and quartz (SiO2) as the main gangue mineral. Metal-ion adsorption capacities, zeta potentials, solution chemistry and X-ray photoelectron spectra were analyzed to study the adsorption behavior and mechanism of copper ions and sodium oleate interaction with the minerals surfaces. The results demonstrate that under weakly acidic conditions, cervantite can be flotated and separated from quartz by the addition of copper ions. The reason is that copper ions can be selectively adsorbed on the cervantite surface under weakly acidic conditions, thereby promoting the adsorption of sodium oleate onto the cervantite surface by chemical adsorption. Conversely, copper ions are weakly adsorbed on quartz surfaces below pH 6.1, and sodium oleate cannot be adsorbed on quartz surfaces by chemical adsorption. The hydroxy copper species are integral to the selective activation of cervantite over quartz.

Słowa kluczowe

EN

flotation; cervantite; copper ions; activation mechanism

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2018
• Tom: Vol. 54, iss. 3
• Strony: 814--825
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Wang J.

• School of Environment and Resource, Southwest University of Science and Technology
• Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization, Mianyang, sichuan, 621010, PR China

autor

Wang Y.

• School of Resources Processing and Bioengineering, Central South University

autor

Fu K.

• School of Environment and Resource, Southwest University of Science and Technology
• Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization, Mianyang, sichuan, 621010, PR China

autor

Xu L.

• Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
• School of Environment and Resource, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization, Mianyang, sichuan, 621010, PR China

autor

Wang Z.

• School of Environment and Resource, Southwest University of Science and Technology
• Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization, Mianyang, sichuan, 621010, PR China

autor

Sun H.

• School of Environment and Resource, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization
• School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, PR China

autor

Xiao J.

• School of Environment and Resource, Southwest University of Science and Technology
• Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology
• Sichuan Engineering Lab of Non-metallic Mineral Powder Modification & High-value Utilization, Mianyang, sichuan, 621010, PR China

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