Development of ore sorting and its impact on mineral processing ...
WEBOct 15, 2014 · The energy costs required to refine metal values contained in ore to concentrates constitute the majority of the cost to produce metals. On average across the mining industry, 44% of the total electricity consumption is dedied to crushing and milling activities (Fig. 1).Size reduction operations, nearly 150 × 10 9 kW h, are the .