Paul Prziwara

TL;DR: In this paper, the effects of several grinding aids on dry fine grinding of limestone in a laboratory vibration mill were investigated, and the impacts of these aids were analyzed on different levels simultaneously: Grinding success and agglomerate size distributions were evaluated by wet and dry particle size measurements, respectively.

TL;DR: In this article, the impact of particle stabilization by liquid grinding aids on the grinding performance of dry fine grinding of limestone was investigated in a dry operated stirred media mill, and it was demonstrated that the grinding mechanism inside the mill depends on both the mill parameters as well as powder flow behavior.

TL;DR: It is shown that the variety of applied substances, ground materials, target finenesses and analysis methods complicate the development of a comprehensive understanding of grinding aids, and how the mill type and grinding conditions influence the additive effects.

TL;DR: In this paper, the authors investigated the product flow behavior regarding the grinding performance in continuously and dry operated stirred media mills and found that both machine-related values like the choice of process parameters as well as product-related characteristics like the powder flowability influenced the grinding process on different levels simultaneously.

TL;DR: In this article, the impact of additive-induced changes of the powder behavior on the surface energies of different powders was investigated with a special regard to different ground materials, and it was shown how additives from different substance classes influenced the surface energy of different products and their particle and powder properties.