Adsorption characteristics of Pb(II) ions on sulfidized hemimorphite surface under ammonium sulfate system

Xi Zhang; Jiushuai Deng; Yu Wang; Sihao Li; Honghui Zhao; Chang Liu; Zhitao Ma; Zhenwu Sun

International Journal of Mining Science and Technology (Apr 2023)

Adsorption characteristics of Pb(II) ions on sulfidized hemimorphite surface under ammonium sulfate system

Xi Zhang,
Jiushuai Deng,
Yu Wang,
Sihao Li,
Honghui Zhao,
Chang Liu,
Zhitao Ma,
Zhenwu Sun

Affiliations

Xi Zhang: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Jiushuai Deng: Corresponding author.; Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Yu Wang: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Sihao Li: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Honghui Zhao: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Chang Liu: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Zhitao Ma: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China
Zhenwu Sun: Key Laboratory of Separation and Processing of Symbiotic-Associated Mineral Resources in Non-ferrous Metal Industry, School of Chemical & Environmental Engineering, China University of Mining & Technology - Beijing, Beijing 100083, China; Engineering Technology Research Center for Comprehensive Utilization of Rare Earth, Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, China University of Mining and Technology - Beijing, Beijing 100083, China; Inner Mongolia Research Institute, China University of Mining and Technology - Beijing, Ordos 017001, China

Journal volume & issue: Vol. 33, no. 4
pp. 511 – 518

Abstract

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In this work, the effect of ammonium sulfate on the adsorption characteristics of low-concentration Pb(II) ions on the sulfidized hemimorphite surface was comprehensively investigated. The results showed that ammonium sulfate could increase the maximum recovery of hemimorphite from 69.42% to 88.24% under a low concentration of Pb(II) ions. On the hemimorphite surface pretreated with ammonium sulfate, the adsorption of Pb(II) ions was enhanced and the main species of Pb adsorbed was changed from Pb―O/OH to PbS. This was due to the larger amount of ZnS providing more effective adsorption sites for Pb components to generate PbS. Meanwhile, the intensity of ZnS decreased with the formation of PbS, demonstrating that ZnS was covered by PbS which formed later on the mineral surface. It was beneficial for the adsorption of butyl xanthate on the hemimorphite surface to form more hydrophobic substances. As a result, ammonium sulfate played a crucial role in realizing the efficient recovery of hemimorphite.

Published in International Journal of Mining Science and Technology

ISSN: 2095-2686 (Print); 2589-062X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/international-journal-of-mining-science-and-technology

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