Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore
This research investigates the hydrometallurgical processing of molybdenum middlings extracted from copper-molybdenum ore in the Shatyrkul-Zhaysan cluster in Kazakhstan. A molybdenum intermediate obtained after selective flotation of the copper-molybdenum concentrate was used, with a recovery of 0.0...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2024-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/1450-5339/2024/1450-53392400006K.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544747306090496 |
|---|---|
| author | Karimova L. Kairalapov Ye. Tussupbekova T. Oleinikova T. Makasheva G. |
| author_facet | Karimova L. Kairalapov Ye. Tussupbekova T. Oleinikova T. Makasheva G. |
| author_sort | Karimova L. |
| collection | DOAJ |
| description | This research investigates the hydrometallurgical processing of molybdenum middlings extracted from copper-molybdenum ore in the Shatyrkul-Zhaysan cluster in Kazakhstan. A molybdenum intermediate obtained after selective flotation of the copper-molybdenum concentrate was used, with a recovery of 0.07%, a molybdenum content of 22.23% and an extraction of 74.91%. The mineralogical analysis shows molybdenite and chalcopyrite as the main minerals. In experiments, atmospheric leaching with nitric acid in single-stage and two-stage countercurrent processes was investigated to optimize molybdenum extraction and reduce acid consumption. The optimum conditions obtained were: 300 g/L nitric acid, 100 g/L sulfuric acid, 90°C temperature and 2 hours leaching time in the single-stage leaching, which extracted 98.8% molybdenum. The two-stage leaching under optimized conditions allows the extraction of 94.3% molybdenum in solutions with lower residual acidity (0.89 g-eq/L) and redox potential (550 mV) without reducing the extraction of valuable component. Molybdenum extraction reaches 94.3% in the subsequent solvent extraction stage from two-stage leaching solutions. The final product, calcium molybdate with a molybdenum content of 46.83%, meets commercial grade specifications. This research demonstrates an effective process for hydrometallurgical production of commercial grade calcium molybdenite from copper-molybdenum ore, with high molybdenum recovery, reduced acid consumption through two-stage leaching, and minimal hazardous discharges. |
| format | Article |
| id | doaj-art-515afefd24734fffaec18c8d9f161abb |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-515afefd24734fffaec18c8d9f161abb2025-02-03T09:46:29ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752024-01-01601718310.2298/JMMB230725006K1450-53392400006KHydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster oreKarimova L.0Kairalapov Ye.1Tussupbekova T.2Oleinikova T.3Makasheva G.4Laboratory of Metallurgy, LLP “KazHydroMed”, Karaganda, Republic of KazakhstanLaboratory of Metallurgy, LLP “KazHydroMed”, Karaganda, Republic of KazakhstanLaboratory of Enrichment, LLP “KazHydroMed”, Karaganda, Republic of KazakhstanLLP “KazHydroMed”, Karaganda, Republic of KazakhstanLaboratory of Enrichment, LLP “KazHydroMed”, Karaganda, Republic of KazakhstanThis research investigates the hydrometallurgical processing of molybdenum middlings extracted from copper-molybdenum ore in the Shatyrkul-Zhaysan cluster in Kazakhstan. A molybdenum intermediate obtained after selective flotation of the copper-molybdenum concentrate was used, with a recovery of 0.07%, a molybdenum content of 22.23% and an extraction of 74.91%. The mineralogical analysis shows molybdenite and chalcopyrite as the main minerals. In experiments, atmospheric leaching with nitric acid in single-stage and two-stage countercurrent processes was investigated to optimize molybdenum extraction and reduce acid consumption. The optimum conditions obtained were: 300 g/L nitric acid, 100 g/L sulfuric acid, 90°C temperature and 2 hours leaching time in the single-stage leaching, which extracted 98.8% molybdenum. The two-stage leaching under optimized conditions allows the extraction of 94.3% molybdenum in solutions with lower residual acidity (0.89 g-eq/L) and redox potential (550 mV) without reducing the extraction of valuable component. Molybdenum extraction reaches 94.3% in the subsequent solvent extraction stage from two-stage leaching solutions. The final product, calcium molybdate with a molybdenum content of 46.83%, meets commercial grade specifications. This research demonstrates an effective process for hydrometallurgical production of commercial grade calcium molybdenite from copper-molybdenum ore, with high molybdenum recovery, reduced acid consumption through two-stage leaching, and minimal hazardous discharges.https://doiserbia.nb.rs/img/doi/1450-5339/2024/1450-53392400006K.pdfleachingnitric acidextractingenvironmental friendlinessminerals |
| spellingShingle | Karimova L. Kairalapov Ye. Tussupbekova T. Oleinikova T. Makasheva G. Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore Journal of Mining and Metallurgy. Section B: Metallurgy leaching nitric acid extracting environmental friendliness minerals |
| title | Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore |
| title_full | Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore |
| title_fullStr | Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore |
| title_full_unstemmed | Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore |
| title_short | Hydrometallurgical processing of molybdenum middlings from Shatyrkul-Zhaysan cluster ore |
| title_sort | hydrometallurgical processing of molybdenum middlings from shatyrkul zhaysan cluster ore |
| topic | leaching nitric acid extracting environmental friendliness minerals |
| url | https://doiserbia.nb.rs/img/doi/1450-5339/2024/1450-53392400006K.pdf |
| work_keys_str_mv | AT karimoval hydrometallurgicalprocessingofmolybdenummiddlingsfromshatyrkulzhaysanclusterore AT kairalapovye hydrometallurgicalprocessingofmolybdenummiddlingsfromshatyrkulzhaysanclusterore AT tussupbekovat hydrometallurgicalprocessingofmolybdenummiddlingsfromshatyrkulzhaysanclusterore AT oleinikovat hydrometallurgicalprocessingofmolybdenummiddlingsfromshatyrkulzhaysanclusterore AT makashevag hydrometallurgicalprocessingofmolybdenummiddlingsfromshatyrkulzhaysanclusterore |