Abstract
The first part of this review revealed a complex relation between the grinding aid molecules, their influence of the particle and powder properties, as well as the particle stressing inside the mill, which is why grinding aids are still only poorly understood already during lab-scale grinding. The second part of the review presents how additive-induced changes of the powder properties do not only affect the grinding, but also the transport and classification behavior of the particles in open as well as closed grinding circuits. The complexity of these effects is underpinned by reviewing several industrial grinding aid applications. Furthermore, an overview on possible impacts of such additives on the final product properties is given. Finally, the current gaps of understanding are identified and critically discussed with a special regard towards a more efficient selection and application of grinding aid additives for future industrial dry fine grinding processes.
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