The Impact of Different Initial Concentrations of Co, Fe, Mn and KMnO۴ on the Efficiency of Cobalt Removal from Zinc Electrolyte Solution
محل انتشار: دوفصلنامه ایرانی شیمی تجزیه، دوره: 9، شماره: 2
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 35
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شناسه ملی سند علمی:
JR_IJAC-9-2_008
تاریخ نمایه سازی: 28 آبان 1403
چکیده مقاله:
Removal of cobalt from zinc electrolyte solution is one of the most important and difficult steps in zinc production using hydrometallurgy method. The impact of initial concentrations of cobalt, manganese, and Fe and amounts of potassium permanganate on the efficiency of cobalt removal by potassium permanganate from zinc electrolyte solution was investigated in this research. The results indicated that the higher the initial concentration of cobalt, manganese, and Fe is, the lower the cobalt removal amount will be; however, as the amount of potassium permanganate increases, the efficiency of cobalt removal will enhance. It was also found that, in order to make a permissible level of the dissolved cobalt, the consumption of potassium permanganate should be increased as the concentration of cobalt, Fe, and manganese increases. If the concentration of manganese is more than ۵۰۰ mg/L, it can impact the reduction of the efficiency of cobalt removal to a great extent; but when the initial concentration of cobalt is high, the significance of the impact of the initial amounts of manganese would decrease. Additionally, if the manganese concentration is less than ۲۰۰ mg/L, the optimal removal of cobalt (less than ۲ ppm) will not occur under any circumstances. The results also indicate that if the potassium permanganate concentration is ۱ g/L or lower, the Fe ions in the solution will drastically reduce the cobalt removal efficiency.
کلیدواژه ها:
نویسندگان
Vahid Vahid Fard
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
Keivan Shayesteh
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
Pourya Abbasi
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
Mohammad Javad Khani
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran
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