EVALUATION OF THE BATCH PRESS AS A LABORATORY TOOL …
To pursue this benefit, a large-scale roller crusher (Loesche) was installed at Foskor in order to limit the over-grinding of apatite. Over-grinding of apatite causes significant losses during flotation. In the late 1980's, Schönert (1988), focused on one of the advantages of inter-particle crushers, namely a potential saving in energy.