Beitrag zur Zinkgewinnung aus Filterstäuben der Elektrostrahlerzeugung (Volume 1) (English shop)

This dissertation investigates the recovery of zinc from zinc- and chloride-containing filter dust generated during electric arc furnace steelmaking. Its central objective is to develop a combined process involving thermal partial reduction and hydrometallurgical leaching to achieve selective zinc recovery with reduced acid and energy requirements.

The study examines the physical, chemical, and mineralogical properties of electric arc furnace dust and evaluates process parameters for decomposing poorly soluble zinc ferrites, removing alkali chlorides, and producing zinc sulfate solutions. It also addresses the utilization of iron-rich residues, integration into conventional electrolytic zinc production, and the technical and economic feasibility of the proposed recovery process.