from the conferences organized by TANGER Ltd.
This paper summarizes research focused on the evaluation of metallurgical sludge generated during steel production in an oxygen converter, with the aim of preserving its high iron content for further use in the steel industry. The technology employs pyrometallurgical processing using secondary waste as a reducing agent. Under optimal conditions—at temperatures ranging from 1100 to 1200 °C in an oxygen atmosphere—a significant reduction in the content of harmful substances and an increase in the proportion of metallic iron were achieved. The resulting material is suitable as a secondary raw material, and usable zinc products are simultaneously produced. The research confirmed the technological feasibility of the proposed process and its contribution to the circular economy and the reduction of environmental impact
Keywords: zinc, sludge, oxygen converter, rotary kiln© 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.