The optimization of effective parameters in the leaching of sodium and potassium salts from electric arc furnace dust | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 5، دوره 59، شماره 2، تابستان 2025، صفحه 137-142 اصل مقاله (761.35 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2025.397385.595270 | ||
| نویسندگان | ||
| Ziaeddin Pourkarimi* ؛ Hossein Habibi؛ Seyed Hossein Hashemi؛ Dorna Pirouzan؛ Gholamreza Parvareh؛ Mehdi Rahimi | ||
| Iran Mineral Processing Research Center (IMPRC). | ||
| چکیده | ||
| This study optimized water-based leaching parameters for recovering Na and K salts from electric arc furnace (EAF) dust, while enhancing iron content in the residue. Characterization revealed the dust contained 14% Na₂O, 10.7% K₂O, and 45.3% Fe₂O₃, with particles <15 µm. Response Surface Methodology (RSM) identified temperature (60-70°C) as the most critical factor, achieving 83% Na and 68% K recovery at 25% solid content over 60 minutes. The process enriched the iron grade in the residue by 25% (from 32% to 40% Fe), as validated through large-scale experiments. The method offers dual environmental and economic benefits by minimizing waste and recovering valuable salts. | ||
| کلیدواژهها | ||
| Electric Arc Furnace (EAF) Dust؛ Sodium and Potassium؛ Water-based leaching؛ Environmental sustainability؛ Waste minimization | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 426 تعداد دریافت فایل اصل مقاله: 266 |
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