Experimental study on the mineral processing of a high-clay and lean hematite

The mineral processing experimental research was carried out on a high mud content lean hematite.The results showed that using the technological flowsheet of "stage grinding-low intensity magnetic separation for obtaining concentrate-high-intensity magnetic separation for discarding tailings-gravity separation(shaking table)", a final iron concentrate with TFe grade of 65.89%,yield of 19.35% and iron recovery of 52.33% from the raw ores with TFe grade of 24.07％ was obtained,with the first stage grinding size being 50% -0.074mm and the second stage,95% -0.074mm.