Abstract
Lower ore grades and rising competition require new, more efficient approaches in ore processing. Instead of blending different ore varieties into a homogeneous feed for processing plants, selective comminution may be a solution for certain mining operations to increase recovery at lower costs.Selective comminution exploits selected ore characteristics to achieve an enrichment of valuable minerals in certain fractions. A simple classification step will already produce a pre-concentrate in this case, while other fractions can be discarded or processed separately. Quantitative Microstructural Analysis (QMA) provides valuable information on the behaviour of an ore in the comminution process.
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