Project Details
Projekt
The Interaction of Stress conditions, Engineered Artificial Minerals Structure and Formulation in Wet Comminution and Separation
Subject Area
Mechanical Process Engineering
Term
since 2021
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 470377913
Selective comminution and an understanding of the interactions with a subsequent separation step are essential for recovering valuable components from slags that are present in small quantities. Wet comminution has advantages when it comes to further wet processing such as flotation or density separation, higher finenesses and thus degrees of decomposition can be produced and solubilities can be influenced by additives. Based on findings from the selective comminution of two-component mixtures and ores, it is postulated here that different fracture behaviors of the individual components enable selective comminution through specific selection of the stress conditions. This is to be investigated and understood in detail for wet comminution. The starting point for the investigations are three mineral phases frequently occurring in a lithium slag, which are first processed as individual materials, then as mixtures and finally as artificial slag. The aim is to apply the fracture behavior determined from the single-substance comminutions to first mixtures and then slags in order to specifically set suitable selectively acting stress conditions. Consideration of the subsequent separation and also the effect of certain additives is also planned.
DFG Programme
Priority Programmes
