Russia: Mikheyevsky GOK to increase copper concentrate extraction

The Mikheyevsky Ore Mining and Processing Plant (Varnensky district, Chelyabinsk region) plans to adopt a three-stage ore grinding technology, which will produce finer ore particles than the existing two-stage crushing equipment. The separation of tiny impregnated copper particles from gangue material is expected to reduce the loss of valuable fractions in tailings and increase the…