Slags sometimes contain some critical raw materials, which are only present in single-digit percentages. These raw materials are usaually bound in mineral form and, in some cases, have crystal sizes in the submicron range or are dendritically intertwined. Accordingly, processing down to this size range is necessary. In the project, this is carried out using a stirred ball media in wet mode. While the first project phase focused mainly on selective comminution and fracture mechanics, the second phase emphasizes the process integration of chemical leaching into the comminution step. The feasibility was already demonstrated in the first phase. These two process steps are conducted in the mill and combined with a microfiltration unit to achieve the most efficient recovery of valuable components. The optimization of this integrated process is to be complemented by process simulations.
DFG Programme
Priority Programmes
