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The processing of a low-grade gold refractory sulfide ore by flotation-biooxidation-cyanidation route | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 2، دوره 59، شماره 2، شهریور 2025، صفحه 119-123 اصل مقاله (760.64 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2025.396215.595265 | ||
| نویسندگان | ||
| Sepide Sedighi1؛ Ali Ahmadi* 2 | ||
| 1Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran | ||
| 2Department of Mining Engineering, Isfahan University of Technology, Isfahan, Iran | ||
| چکیده | ||
| By depletion of high-grade and easy-to-treat gold ores and the increase in gold price, the extraction of gold from low-grade and refractory ores, such as sulfide ores has been given attention. Biooxidation is one of the efficient, relatively low-cost and environmentally friendly processes to enhance gold extraction by releasing fine gold encapsulated in sulfide phases. So, in this research, the efficiency of concentrate biooxidation-flotation system in increasing gold recovery from sulfide-refractory low-grade ores was investigated. Biooxidation experiments with mesophilic and moderate thermophilic microorganisms were conducted on the flotation concentrate. Finally, cyanidation experiments were conducted on the flotation concentrate, and biooxidized flotation concentrate. Gold recovery from non-biooxidized flotation concentrate was 63.59%, while it increased to 80.21% after biooxidation with mesophilic microorganisms and to 79.84% after biooxidation with moderate thermophilic microorganisms. | ||
| کلیدواژه‌ها | ||
| Biooxidation؛ Concentrate؛ Microorganism | ||
| مراجع | ||
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[1] Adams, M. D. (2005). Advances in gold ore processing (Vol. 15): Elsevier.
[2] Anzoom, S. J., Bournival, G., & Ata, S. J. M. E. (2024). Coarse particle flotation: A review. 206, 108499.
[3] Asamoah, R., Amankwah, R., & Addai-Mensah, J. (2014). Cyanidation of refractory gold ores: A review. Paper presented at the 3rd UMaT Biennial International Mining and Mineral Conference.
[4] Beiranvand, Z., Ahmadi, A., & Hosseini, M. R. J. M. E. (2023). Effect of mechanical activation on biooxidation and gold extraction of a high-grade flotation concentrate using mesophilic and moderately thermophilic microorganisms. 204, 108394.
[5] Fomchenko, N., Muravyov, M. J. A. B., & Microbiology. (2017). Chemical leaching of copper-zinc concentrate with ferric iron biosolution. 53, 715-718.
[6] Fomchenko, N. V., Kondrat'eva, T. F., & Muravyov, M. I. J. H. (2016). A new concept of the biohydrometallurgical technology for gold recovery from refractory sulfide concentrates. 164, 78-82.
[7] Han, J., Dai, S., Deng, J., Que, S., & Zhou, Y. J. S. (2024). Technology for Aiding the Cyanide Leaching of Gold Ores. 11(8), 228.
[8] Johnson, D. J. J. o. m. m. (1995). Selective solid media for isolating and enumerating acidophilic bacteria. 23(2), 205-218.
[9] Medina, D., & Anderson, C. G. J. M. (2020). A review of the cyanidation treatment of copper-gold ores and concentrates. 10(7), 897.
[10] Miller, P., & Brown, A. J. G. o. p. (2016). Bacterial oxidation of refractory gold concentrates. 359-372.
[11] Muravyov, M. J. C. P. (2019). Two-step processing of refractory gold-containing sulfidic concentrate via biooxidation at two temperatures. 73, 173-183.
[12] Natal'ya, V. F., Muravyov, M. I., & Kondrat'eva, T. F. J. H. (2010). Two-stage bacterial–chemical oxidation of refractory gold-bearing sulfidic concentrates. 101(1-2), 28-34.
[13] Nouhi, E., & Ahmadi, A. J. E. E. S. (2025). Application of acid mine drainage for the biooxidation of a high-grade refractory sulfide gold ore. 84(2), 67.
[14] Olson, G. J. J. F. M. L. (1994). Microbial oxidation of gold ores and gold bioleaching. 119(1-2), 1-6.
[15] Seifi, M. (1402). Processing gold ore by flotation method. Sahand University of Technology,
[16] Silverman, M. P., & Lundgren, D. G. J. J. o. b. (1959). Studies on the chemoautotrophic iron bacterium Ferrobacillus ferrooxidans II: Manometric Studies. 78(3), 326-331.
[17] Wang, G., Liu, X., Wu, Y., Zeng, T., Li, S., Liu, J., . . . Xie, S. J. H. (2020). Bio-oxidation of a high-sulfur refractory gold concentrate with a two-stage chemical-biological approach. 197, 105421.
[18] Wu, Z. L. (2018). Sulfide Minerals Bio-Oxidation of a Low-Grade Refractory Gold Ore. Paper presented at the Materials Science Forum. | ||
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