Recovery of Vanadium from Esfahan Steel Company Steel Slag; Optimizing of Roasting and Leaching Parameters
- سال انتشار: 1385
- محل انتشار: مجله ی بین المللی انجمن آهن و فولاد ایران، دوره: 3، شماره: 2
- کد COI اختصاصی: JR_ISSIRAN-3-2_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 194
نویسندگان
Department of Materials Engineering, Isfahan University of Technology, Isfahan,۸۴۱۵۶۸۳۱۱۱, Iran
Department of Materials Engineering, Isfahan University of Technology, Isfahan,۸۴۱۵۶۸۳۱۱۱, Iran
Department of Mining, Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran
Department of Mining, Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran
چکیده
In this Study, vanadium recovery from the steelmaking converter slag was studied. Salt roasting-basic leaching is the process which was applied to separate and extract vanadium from steel making slag. Ground slag was roasted after mixing with determined quantities of sodium carbonate. The effect of time and temperature of roasting and sodium carbonate content were studied. The optimum temperature, time and sodium carbonate content in the roasting process were found to be ۱۰۰۰oC, ۴۵ min and ۱۰%, respectively. Temperature, time, leachant concentration and particle size were optimized for leaching process. It was determined that sodium carbonate is the major leaching agent in comparison with sodium hydroxide. The most suitable conditions for leaching process was found to be ۸۰oC, ۶۰ min, sodium carbonate to sodium hydroxide mass ratio of ۴۰-۵۰:۱۰ and particle size between ۱۰۰ and ۱۲۰ mesh. More than ۸۰% of vanadium was recovered under optimum conditions.کلیدواژه ها
Vanadium, Steelmaking slag, Recovery, Leachingاطلاعات بیشتر در مورد COI
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