Vanadium extraction from a magnetite ore using alkaline roasting and acid leaching processes: optimization of parameters by response surface methodology | ||
| Journal of Mining and Environment | ||
| مقاله 17، دوره 10، شماره 1، فروردین 2019، صفحه 241-255 اصل مقاله (2.43 M) | ||
| نوع مقاله: Case Study | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2018.7578.1610 | ||
| نویسندگان | ||
| D. Ghoddocy Nejad1؛ M. Taghizadeh* 1؛ A. R. Khanchi2 | ||
| 1Chemical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran | ||
| 2Nuclear Science and Technology Research Institute, Tehran, Iran | ||
| چکیده | ||
| In this work, thealkaline roasting and sulfuric acid leaching processes were employed to extract vanadium from the magnetite ore of Saghand mine in central Iran. The response surface methodology based on the central composite design model was applied to optimize the parameters involved in the processes. The studied roasting parameters were temperature (900-1100 °C), sodium carbonate percentage (30-50 wt%), and time (1-3 h). In addition, the studied leaching factors included temperature (70-90 °C), liquid-to-solid ratio (L/S) (5-20 mL/g), sulfuric acid concentration (2-6 M), and time (3-6 h). Under the optimal conditions, the values for temperature, time, and sodium carbonate amounted to 1010 °C, 2.1 h, and 41 wt%, respectively, for the roasting process, while the values for temperature, L/S, sulfuric acid concentration, and time for the leaching process were estimated to be 85 °C, 12.4 mL/g, 4.25 M, and 4.7 h, respectively. Under these conditions, about 83.8 ± 0.9% of vanadium was leached from the magnetite ore. | ||
| کلیدواژهها | ||
| Magnetite Ore؛ Vanadium؛ Alkaline Roasting؛ Acid Leaching؛ Optimization | ||
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آمار تعداد مشاهده مقاله: 933 تعداد دریافت فایل اصل مقاله: 1,208 |
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