Development of a Two-Stage Hydrometallurgical Process for Gold–Antimony Concentrate Treatment from the Olimpiadinskoe Deposit
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Development of a Two-Stage Hydrometallurgical Process for Gold–Antimony Concentrate Treatment from the Olimpiadinskoe Deposit
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| Автор |
Rusalev, R.
Rogozhnikov, D. Dizer, O. Golovkin, D. Karimov, K. |
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| Тематика |
ANTIMONY
ARSENIC GOLD CYANIDATION LEACHING MATHEMATICAL PLANNING OF EXPERIMENTS NITRIC ACID OPTIMIZATION REFRACTORY GOLD ORES ANTIMONY ANTIMONY COMPOUNDS ARSENIC DEPOSITS EXTRACTION FLOTATION HYDROMETALLURGY IRON NITRIC ACID ORE TREATMENT ORES POLYNOMIALS SODIUM HYDROXIDE SULFUR COMPOUNDS ALKALINES GOLD CYANIDATION HYDROMETALLURGICAL PROCESS MATHEMATICAL PLANNING OF EXPERIMENT METALLURGICAL PROCESS NITRIC ACID LEACHING OPTIMISATIONS PLANNING OF EXPERIMENTS REFRACTORY GOLD ORE S RATIO LEACHING |
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| Описание |
An integrated two-stage metallurgical process has been developed to process concentrates from the Olimpiadinskoe deposit, which contain high levels of antimony and arsenic. The optimal parameters for the alkaline sulfide leaching process of the initial concentrate from the Olimpiadinskoe deposit were determined to achieve the maximum extraction of antimony at a 99% level. The recommended parameters include an L:S ratio of 4.5:1, a sodium sulfide concentration of 61 g/L, a sodium hydroxide concentration of 16.5 g/L, a duration of 3 h, and a temperature of 50 °C. A synergistic effect of co-processing alkaline sulfide leach cakes with sulfuric and nitric acids was observed. The pre-treatment step reduced the nitric acid composition by converting carbonates into gypsum and increased the arsenic extraction by 15% during subsequent nitric acid leaching. The laboratory research on the nitric acid leaching of decarbonized cake established the key parameters for the maximum iron and arsenic extraction in solution (92% and 98%, respectively), including an L:S ratio of 9:1, a nitric acid concentration of 6 mol/L, and a time of 90 min. Full polynomial equations for the iron and arsenic extraction from the decarbonized cake were derived. The model demonstrated a high relevance, as evidenced by the determination coefficients (R2) of 96.7% for iron and 93.2% for arsenic. The technology also achieved a high gold recovery rate of 95% from the two-stage alkaline sulfide and nitric acid leach cake. Furthermore, the maximum deposition of arsenic from the nitrate leach solution in the form of insoluble As2S3 was determined to be 99.9%. A basic technological flow sheet diagram for processing the flotation gold–antimony concentrate from the Olimpiadinskoe deposit was developed, including two stages: the production of metallic antimony and the gold extraction from the nitric leach cake. © 2023 by the authors.
Russian Science Foundation, RSF: 075-03-2021-051/5, 22-79-10290, FEUZ-2021-0017 This work was funded by the Russian Science Foundation Project No. 22-79-10290. The XRF and XRD analyses were funded by the State Assignment, grant No. 075-03-2021-051/5 (FEUZ-2021-0017). |
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| Дата |
2024-04-05T16:28:01Z
2024-04-05T16:28:01Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Rusalev, R, Rogozhnikov, D, Dizer, O, Golovkin, D & Karimov, K 2023, 'Development of a Two-Stage Hydrometallurgical Process for Gold–Antimony Concentrate Treatment from the Olimpiadinskoe Deposit', Materials, Том. 16, № 13, 4767. https://doi.org/10.3390/ma16134767
Rusalev, R., Rogozhnikov, D., Dizer, O., Golovkin, D., & Karimov, K. (2023). Development of a Two-Stage Hydrometallurgical Process for Gold–Antimony Concentrate Treatment from the Olimpiadinskoe Deposit. Materials, 16(13), [4767]. https://doi.org/10.3390/ma16134767 1996-1944 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85164808500&doi=10.3390%2fma16134767&partnerID=40&md5=0547144b62e38e0e7be7b97112710f7e https://www.mdpi.com/1996-1944/16/13/4767/pdf?version=1688197761 http://elar.urfu.ru/handle/10995/130639 10.3390/ma16134767 85164808500 001030980600001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//22-79-10290
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Multidisciplinary Digital Publishing Institute (MDPI)
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| Источник |
Materials
Materials |
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