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...

Phosphorus is an essential and non-substitutable element for the cellular processes of all living organisms. The main source phosphorus in biosphere phosphate rock. With more than 700 Mt rock, Estonia holds largest sedimentary rock deposits European Union. Estonian particularly outstanding due to its remarkably low content hazardous heavy metals such as Cadmium (<5 ppm) trace elements Uraniu...