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Reducibility of raw materials such as iron ore and sinter is a significant parameter characterizing the quality of input materials of blast furnace feedstock. It is considered to be a tool for optimizing of production process in shaft aggregates referring to economical production of pig iron. The paper deals with evaluation of reducibility of metallurgical waste. It aims at study of reduction process of fine waste from metallurgical production typical with high ratio of Fe and compacted into cylindrical briquettes. In the introduction, the paper sumps up the economic indicators important for waste management in metallurgical industry and presents worldwide experience with techniques for fine waste materials compacting, as same as recycling of the materials originated from production process in the same company. It presents methodology for testing of reducibility of non-traditional metal materials such as iron-bearing waste compacted into briquettes. It describes the experimental procedures for results acquiring. The results of testing are discussed in relation to production parameters such as reduction kinetics of the waste, reduction of iron oxides and reduction gas consumption and they are interpreted in economical point of view.
Keywords: metallurgical waste, blast furnace, reducibility, economical evaluation© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.