Preconcentration of low-grade banded iron formation (BIF)by physical beneficiation

The depletion of high-grade iron ore reserves in South Africa has necessitated the exploration of low-grade hematite resources in a bid to extend life of mine and maximize resource utilization, particularly banded iron formations (BIF) material, which makes up about 66 percent of future reserves. BIF are sedimentary rocks and consist of alternating layers of silica and iron. It has been observed t...