Chromium Ore an overview | ScienceDirect Topics
Chromium Ore. Chromium ores are often classified based on their elemental composition and industrial use into: highchromium (4655% Cr2O3, Cr:Fe gt;) used for metallurgical processes, highiron (4046% Cr2O3, Cr:Fe ) used for chemical and metallurgical purposes, and highaluminum (3338% Cr2O3, 2234% Al2O3) used widely as refractory material [1].