Technological Features of Steelmaking Slag Processing in Building Materials and Products
The main types of slag generated by the steel industry, features of their chemical and mineralogical compositions are considered. Physical-chemical conditions of the slag formation aredescribed. It is shown that under conditions of the oxidizing melting the slag containing significant amounts of iron oxide and small amounts of calcium oxide is formed, but under conditionsof reduction melting the slag containing significant amounts of calcium oxide and small amounts of iron oxide is formed. Features of the phase compositions of slag are shown.An analysis of now existing methods of processing of steelmaking slag and features of the processing of self-flaking, high-lime, refined slags are presented. The correction of the phasecomposition of self-flaking slag at the moment of melting is the most prospective methods of their stabilization. The results of such slag stabilization arepresented. The possibility ofgiving binding properties to the slag by mixing of different types of liquid slag is shown. Results and technical features of the steelmaking slagprocessing in building materials and products are presented and described.