This research was aimed at evaluating the efficiency of advanced gravity and magnetic separations on the recovery of chromite from the fine Platinum Group Metals (PGM) tailings consisting of particles 80% passing 75 µm with about 45% being >45 µm resulting in high chromite losses. The PGM plant tailings were subjected to X-ray fluorescence, scanning electron microscopy and particle size dis...

Direct alloying of chromium by chromite attracts a lot interest for its superiority in energy-saving and process simplification. The knowledge reduction FeCr2O4, the main component chromite, is key to understanding mechanism from chromite. effect melt composition (carbon addition) temperature on FeCr2O4 carbon-containing iron was studied. higher carbon content melt, recovery obtained. Similarly...

The East Sulawesi Ophiolite, one of the three largest ophiolites in world, contains important podiform chromitites. However, origin these chromite deposits is not well constrained. Here, we present detailed mineralogy and situ chemistry solid inclusions within for chromitites from Kabaena Island, Southeast Sulawesi. Chromite grains have low TiO2 (0.17–0.27 wt%) Al2O3 (13.4–15.1 contents high Cr...

Microbial extraction of nickel from lateritic chromite overburden (COB), Sukinda by Acidithiobacillus ferrooxidans has been investigated in this work. In anoxic environment, A. ferrooxidans reduced the ferric iron in goethite [Fe(O)OH] mineral of COB by using elemental sulphur as electron donor. Nickel embedded in the complex goethite matrix of COB was successfully recovered by cumulative actio...