Mechanically activated mine tailings for use as ...
Qtz-B-30) using a laboratory ball mill at 450 rpm and disc milled for different durations ranging from 1-15 minutes (labelled NiCu-D-x and QtzD-x,-where x is the duration of milling in minutes) using a disc mill at 1500 rpm. In the ball mill, feed material is milled to the desired fineness in a