cr2o3 ore

... of properties of the brick is a function of the magnesite-to-chrome ore ratio. For example, a direct bonded brick containing 60 % magnesia is normally regarded as having better spalling resistance than one containing 80 % ...

Magnesia-chrome brick containing not less than 15% high content of Cr2O3 Magnesia-chrome bricks are made of fused chrome sand and chrome ore with high Cr2O3 content and high purity.The refractory product for RH furnace is mainly magnesia chrome brick. ...

... ore, coke and silica. The content of Cr2O3 in chromium ore is ≥40%, Cr2O3/∑FeO ≥2.5, S<0.05%, P<0.07%, MgO and Al2O3 cannot be too high, and the particle size is 10-70mm. If it is a refractory ore, the particle size should be appropriately smaller.

...Cr2O3) as the main ingredient, periclase and spinel as main mineral components of refractory products. 1. Common Magnesite chrome brick is made by sintered magnesia and refractory level chrome ore as raw materials. The space between refractory grains is bonded with silicate. 2. Direct-bonded Magnesite chrome brick is made by chrome ore...

... coefficient between 2.5-3.5×10-6/℃, a refractoriness of 1700-1800℃, a chemical composition of MgO-Cr2O3, and a bulk density of 2.7-3.0 G/cm3. With these excellent properties, Magnesia Chrome Brick also has good resistance to chemical corrosion,