A characterization study of chromite ore from South Africa was conducted using bulk assays, X-ray diffraction, optical, scanning electron microscopy (SEM), automated probe microanalysis (EPMA) and quantitative evaluation mineral by (QEMSCAN) mineralogical techniques, EPMA. The aim to identify all major gangue impurities, the degree liberation, possible beneficiation options. material assayed 40...

The production of ferrochrome alloy from chromium bearing chromite ores is conducted at high temperature under highly reducing conditions. However, albeit completely unintended, it is impossible to completely exclude oxygen from all high temperature process steps, with the corresponding possibility arising for the generation of small amounts of Cr(VI) species. Certain Cr(VI) species are regarde...