Bożena Gajdzik, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland The topic of the article is the change in action strategy of metallurgical enterprises in time of economic slowdown. The fi rst part of article presents results of literature analyses, opinions of scientists concerning changes in behaviours of enterprises in time of bad conjunctu...

Flue dust waste coming from a copper (Cu) smelting company has been valorized using newly developed metallurgical process with the aim of recovering concentrated in valuable metals, such as lead (Pb) and zinc (Zn), studying feasibility replacing anthracite biochar reducing agent. Metallurgical trials different mixtures agents have performed furnace at 1400 °C. This employs high-power thermal pl...

this paper presents a methodology, based on the taguchi parameter design approach, for the optimization of process parameters for bismuth recovery from aqueous solutions. the process parameters considered are [bi3+], [nacl], temperature, and cathodic current density. in addition, cell voltage and current efficiency as two responses have been considered. an orthogonal array l9, the signal-to-noi...