doiSerbia

Steelmaking slag beneficiation by magnetic separator and impacts on sinter quality

Bölükbaşı Ö.S. (Dokuz Eylül University, Department of Mining Engineering, Izmir, Turkey)
Tufan B. (Dokuz Eylül University, Department of Mining Engineering, Izmir, Turkey)

Basic oxygen furnaces (BOF) slag is the main problem at all iron and steel factories. About more than 6 million tons/year of BOF slag has been accumulated from the waste stockyards in Turkey. Dumps slags can be revaluated by a processing technology which makes it possible to obtain products that meet the requirements of sintering and blast furnace production. The slags with particle size of -10 mm were enriched by the magnetic separator resulting and increase in Fe grade from 18% to 33%. The use of BOF slag in sinter blend provided additional Mn, CaO, MgO and introduced a good solution to environmental problems.

Keywords: Basic Oxygen Furnaces Slag, Sinter, Solid Waste, Tumbler Index, RDI.