The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior
Lead is an indispensable non-ferrous metal for industrial development. As primary galena(PbS) resources are being exhausted, the utilization of lead oxide ore resources have become increasingly important. Compared with the conventional lead oxide surface sulfidation flotation method by NaHS dosing i...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821124001066 |
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| author | Yu Miao Wanting Yang Xuemin Ding Jiarui Min Bao Guo Xiangxiang Chen Chun Yu |
| author_facet | Yu Miao Wanting Yang Xuemin Ding Jiarui Min Bao Guo Xiangxiang Chen Chun Yu |
| author_sort | Yu Miao |
| collection | DOAJ |
| description | Lead is an indispensable non-ferrous metal for industrial development. As primary galena(PbS) resources are being exhausted, the utilization of lead oxide ore resources have become increasingly important. Compared with the conventional lead oxide surface sulfidation flotation method by NaHS dosing in the pulp, the roasting sulfidation pre-treatment method has the characteristics of high efficiency and suitable for various types of ores. In this paper, we firstly demonstrate that pyrite(FeS2) can provide a sulfurous atmosphere to convert cerussite(PbCO3) into galena(PbS) through thermodynamic calculations. Then, the reaction conditions were optimized through the roasting sulfidation conditions such as the contact mode, time and temperature of the reaction, and the sulfidation mechanism of cerussite at high temperature roasting was studied by using XRF, XRD, SEM and XPS. It was clarified that the sulfidation of cerussite was progressed by reacting with sulfur-based atmosphere from the surface layer to form PbS, and then gradually penetrating into the inner layer until PbS was completely generated, and the recovery rate was increased from 14.95 % to >80 % after optimization. |
| format | Article |
| id | doaj-art-2229b4cf418747dfa9032019392fb5f7 |
| institution | Kabale University |
| issn | 2666-8211 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj-art-2229b4cf418747dfa9032019392fb5f72025-02-03T04:17:00ZengElsevierChemical Engineering Journal Advances2666-82112025-03-0121100689The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behaviorYu Miao0Wanting Yang1Xuemin Ding2Jiarui Min3Bao Guo4Xiangxiang Chen5Chun Yu6School of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China; School of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, China; Changchun Gold Research Institute Co., Ltd., Changchun 130000, ChinaSchool of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, ChinaSchool of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, ChinaSchool of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, ChinaSchool of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, China; Corresponding authors.School of Zijin Geology and Mining, Fuzhou University, Fuzhou 350108, China; Corresponding authors.Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fuzhou, 350117, China; Fujian Key Laboratory of Flexible Electronics, Fuzhou, 350117, China; Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou, 350117, China; Corresponding authors.Lead is an indispensable non-ferrous metal for industrial development. As primary galena(PbS) resources are being exhausted, the utilization of lead oxide ore resources have become increasingly important. Compared with the conventional lead oxide surface sulfidation flotation method by NaHS dosing in the pulp, the roasting sulfidation pre-treatment method has the characteristics of high efficiency and suitable for various types of ores. In this paper, we firstly demonstrate that pyrite(FeS2) can provide a sulfurous atmosphere to convert cerussite(PbCO3) into galena(PbS) through thermodynamic calculations. Then, the reaction conditions were optimized through the roasting sulfidation conditions such as the contact mode, time and temperature of the reaction, and the sulfidation mechanism of cerussite at high temperature roasting was studied by using XRF, XRD, SEM and XPS. It was clarified that the sulfidation of cerussite was progressed by reacting with sulfur-based atmosphere from the surface layer to form PbS, and then gradually penetrating into the inner layer until PbS was completely generated, and the recovery rate was increased from 14.95 % to >80 % after optimization.http://www.sciencedirect.com/science/article/pii/S2666821124001066CerussiteSulfidation roastingFlotationSulfidation mechanismEnergy saving and carbon reduction |
| spellingShingle | Yu Miao Wanting Yang Xuemin Ding Jiarui Min Bao Guo Xiangxiang Chen Chun Yu The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior Chemical Engineering Journal Advances Cerussite Sulfidation roasting Flotation Sulfidation mechanism Energy saving and carbon reduction |
| title | The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| title_full | The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| title_fullStr | The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| title_full_unstemmed | The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| title_short | The mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| title_sort | mechanism of sulfidation roasting pretreatment of cerussite for enhanced flotation behavior |
| topic | Cerussite Sulfidation roasting Flotation Sulfidation mechanism Energy saving and carbon reduction |
| url | http://www.sciencedirect.com/science/article/pii/S2666821124001066 |
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