Chromium
Chromium is a hard, brittel, silver-colored metals discovered in 1798 by V.L.Vauquelin. This element, along with molybdenum and tungsten, is in the sixth group of the periodic table of elements. The chromium element is not found free in nature. The most important mineral containing chromium in the nature is chromite (FeO.Cr2O3).
Chromite uses:
Chromite ore is the only supplier of chromium, which is highly valued for the production of alloys and the preparation of special steels. Chromium and chromite have different direct and indirect uses and are used extensively in a wide range of modern industrial systems.
Chromite Sand product uses
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin bonding systems and inorganic binders, it has a high refractoriness and a broad sieve distribution.
In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.
When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containe
