Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution
The selective leaching of Mo from an off-grade gravity lead concentrate was investigated in Na2CO3 solution using air as an oxidant. The leaching behaviors of Mo and Pb were predicted by the thermodynamic phase diagrams of Pb-Mo-C-H2O system. The oxidation mechanisms of those sulfides in the off-gra...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2019-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900027L.pdf |
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| author | Liu Z.-X. Luo Y.-T. Luo W.-B. Li B.-X. Wu X.-W. |
| author_facet | Liu Z.-X. Luo Y.-T. Luo W.-B. Li B.-X. Wu X.-W. |
| author_sort | Liu Z.-X. |
| collection | DOAJ |
| description | The selective leaching of Mo from an off-grade gravity lead concentrate was investigated in Na2CO3 solution using air as an oxidant. The leaching behaviors of Mo and Pb were predicted by the thermodynamic phase diagrams of Pb-Mo-C-H2O system. The oxidation mechanisms of those sulfides in the off-grade gravity lead concentrate were confirmed by the methods of X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS). The influence of operating factors on the leaching behaviors of Mo and Pb, including Na2CO3 concentration, liquid-to-solid ratio, temperature, and leaching time, were studied. Under these optimum leaching conditions (Na2CO3 2 M, leaching time 8 h, temperature 75°C, air-flow rate 2.0 m3/h and L/S ratio of 10/1 mL/g), the extraction of Mo and Pb was up to 97.70 and 0.73 %, respectively. |
| format | Article |
| id | doaj-art-84ba489d0e2e47bead428fafcae92103 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-84ba489d0e2e47bead428fafcae921032025-02-02T19:01:15ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752019-01-0155225325910.2298/JMMB181128027L1450-53391900027LSelective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solutionLiu Z.-X.0Luo Y.-T.1Luo W.-B.2Li B.-X.3Wu X.-W.4The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology, Jishou University, Jishou, PR China + College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou, PR China + National Demonstration Center for The Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology, Jishou University, Jishou, PR China + College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou, PR ChinaThe Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology, Jishou University, Jishou, PR China + College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou, PR ChinaThe Collaborative Innovation Center of Manganese-Zinc-Vanadium Industrial Technology, Jishou University, Jishou, PR China + College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou, PR ChinaKey Laboratory of Mineral Cleaner Production and Exploit of Green Functional Materials in Hunan Province, Jishou University, Jishou, PR ChinaThe selective leaching of Mo from an off-grade gravity lead concentrate was investigated in Na2CO3 solution using air as an oxidant. The leaching behaviors of Mo and Pb were predicted by the thermodynamic phase diagrams of Pb-Mo-C-H2O system. The oxidation mechanisms of those sulfides in the off-grade gravity lead concentrate were confirmed by the methods of X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS). The influence of operating factors on the leaching behaviors of Mo and Pb, including Na2CO3 concentration, liquid-to-solid ratio, temperature, and leaching time, were studied. Under these optimum leaching conditions (Na2CO3 2 M, leaching time 8 h, temperature 75°C, air-flow rate 2.0 m3/h and L/S ratio of 10/1 mL/g), the extraction of Mo and Pb was up to 97.70 and 0.73 %, respectively.http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900027L.pdfgravity lead concentratemolybdeniteselective leachingair oxidationna2co3 |
| spellingShingle | Liu Z.-X. Luo Y.-T. Luo W.-B. Li B.-X. Wu X.-W. Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution Journal of Mining and Metallurgy. Section B: Metallurgy gravity lead concentrate molybdenite selective leaching air oxidation na2co3 |
| title | Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution |
| title_full | Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution |
| title_fullStr | Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution |
| title_full_unstemmed | Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution |
| title_short | Selective leaching of Mo from an off-grade gravity lead concentrate in Na2CO3 solution |
| title_sort | selective leaching of mo from an off grade gravity lead concentrate in na2co3 solution |
| topic | gravity lead concentrate molybdenite selective leaching air oxidation na2co3 |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2019/1450-53391900027L.pdf |
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