کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9632544 | 462114 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Leaching and cementation of heavy metals from electric arc furnace dust in alkaline medium
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Laboratory-scale research has focused on the treatment of EAF steel making dusts by an alkaline caustic leach process, combining both hydro- and environmentally suitable metallurgical methods to recover zinc and lead. Optimum conditions were found to be: 95 °C, 1/7 solid/liquid ratio, 10 M NaOH and 2 h leaching time. Under these conditions, 85% Zn and 90% Pb were recovered. The leachate was further purified by zinc cementation at 50 °C to remove the metallic impurities (Pb, Cu, Cd, etc.) and to make it suitable for alkaline zinc electrolysis. The cementation process was chemically controlled with an activation energy of 26.7 kJ molâ 1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 78, Issues 3â4, August 2005, Pages 236-245
Journal: Hydrometallurgy - Volume 78, Issues 3â4, August 2005, Pages 236-245
نویسندگان
Gökhan Orhan,