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

[Image: see text] The selective action mechanism of sodium butyl xanthate (BX), ammonium salt (NH(4)(+)), 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 (NH(4)(+)) and...

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Autores principales: Sun, Xiaohao, Wu, Bozeng, Deng, Jiushuai, Qiu, Hongxin, Hu, Mingzhen, Cai, Jiaozhong, Jin, Xiaoli, Xu, Hongyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867808/
https://www.ncbi.nlm.nih.gov/pubmed/35224392
http://dx.doi.org/10.1021/acsomega.1c06902
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author Sun, Xiaohao
Wu, Bozeng
Deng, Jiushuai
Qiu, Hongxin
Hu, Mingzhen
Cai, Jiaozhong
Jin, Xiaoli
Xu, Hongyang
author_facet Sun, Xiaohao
Wu, Bozeng
Deng, Jiushuai
Qiu, Hongxin
Hu, Mingzhen
Cai, Jiaozhong
Jin, Xiaoli
Xu, Hongyang
author_sort Sun, Xiaohao
collection PubMed
description [Image: see text] The selective action mechanism of sodium butyl xanthate (BX), ammonium salt (NH(4)(+)), 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 (NH(4)(+)) 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 (NH(4)(+)) 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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spelling pubmed-88678082022-02-25 Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite Sun, Xiaohao Wu, Bozeng Deng, Jiushuai Qiu, Hongxin Hu, Mingzhen Cai, Jiaozhong Jin, Xiaoli Xu, Hongyang ACS Omega [Image: see text] The selective action mechanism of sodium butyl xanthate (BX), ammonium salt (NH(4)(+)), 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 (NH(4)(+)) 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 (NH(4)(+)) 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. American Chemical Society 2022-02-10 /pmc/articles/PMC8867808/ /pubmed/35224392 http://dx.doi.org/10.1021/acsomega.1c06902 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Sun, Xiaohao
Wu, Bozeng
Deng, Jiushuai
Qiu, Hongxin
Hu, Mingzhen
Cai, Jiaozhong
Jin, Xiaoli
Xu, Hongyang
Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title_full Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title_fullStr Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title_full_unstemmed Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title_short Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite
title_sort synergistic mechanism of combined inhibitors on the selective flotation of arsenopyrite and pyrite
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867808/
https://www.ncbi.nlm.nih.gov/pubmed/35224392
http://dx.doi.org/10.1021/acsomega.1c06902
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