Process for removing copper from iron-rich melts

摘要

To remove copper from iron-rich melts, for example pig iron or steel melts, it is proposed sulphur be introduced into or applied to the melt bath in an at least stoichiometric amount based on Cu and the liquid Cu2S (copper matte) phase be drawn off. In the case of carbon- rich melts, a phase separation into a Cu-rich fraction and an Fe-rich fraction can be carried out in a first process step.