Study on Indian chromite ore Characterization and its reduction behaviour

Abstract

We know that chromite [1] is the most imp. ore of chromium metal. It is an iron chromium oxide (FeCr2O4). Chromite is found in ultrabasic rock such as peridotite. It is also found in serpentines and other metamorphic rocks which is derived from the alteration of ultrabasic rock .It is a high temperature mineral often found in lower part of magma bodies from the fractional crystall-ization process. Usually magnesium is present in chromite substituting for the iron, in fact a solid solution exist between chromite and the much rarer mineral magnesio-chromite . All chromite specimen in nature contain some magnesium , likewise all natural magnesiochromites contain some iron . Magnesiochromite is grayer in colour and has slightly lower density than chromite at a specific gravity of 4.2 to 4.4 .