Classification of Low-Grade Copper-Nickel Ore and Mining Waste by Ecological Hazard and Hydrometallurgical Processability
A. V. Svetlov1, P. V. Pripachkin2, V. A. Masloboev1, D. V. Makarov1
1Institute for Problems of Industrial Ecology of the North, Kola Science Center, Russian Academy of Sciences, Apatity, Russia
2Geological Institute, Kola Science Center, Apatity, Russia
Keywords: Арктическая зона Российской Федерации, минерально-сырьевой комплекс, кислотопродуцирующий потенциал, нейтрализующий потенциал, техногенные минеральные образования, сульфидные руды, геотехнологии, Russia’s Arctic zone, mineral mining sector, acidogenic potential, neutralization potential, mining waste, sulphide ore, geotechnologies
Abstract
The authors range low-grade copper-nickel ore and mining waste represented by overburden dumps, mill tailings and slag in the territory of the Murmansk Region by the criterion of potential ecological hazard. The determinants of mobility of heavy metals formed in oxidation of sulphides are the content of barren minerals (silicate matrix), pH of pore solutions and exposure to atmospheric weathering (acid rains). The criteria of natural copper-nickel ore and mining waste processability are determined.
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