Olivine is a widely used iron and steel industry as a smelter and slag regulator in blast furnaces. In the iron-steel industry, it is desirable that the blast furnace iron ore be homogeneously melted and mixed with the slag. The most important point here is that impurities such as sulfur and phosphate in the slurry are removed from the medium by forming compounds with oxides such as CaO, MgO, SiO2 and Al2O3 in slag.
For this to happen, the environment must have a certain degree of basicity. That is olivine mineral, the ratio of (CaO + MgO) / (SiO2 + Al2O3) should be between 0.8 and 1.2. The reason for preferring olivine with this area coke is that olivine is more pure in chemical composition, because it has a high MgO content, it has a certain degree of basicity in the environment and increases the fluidity of the slag. In addition, the stable alkaline magnesium silicate produced by olivine reduces the alkali circulation in the oven.
In addition, the resistance of olivine mine to high temperatures prevents the material from breaking in the furnace, furthermore breaking the low heat resistant materials, permitting permeability and reducing costs by reducing the consumption of coal. Olivine gemstone may be added directly to the blast furnace in the form of 10 mm to 40 mm pieces as well as 3 to 6 mm in sintered form or blended with low silica content iron powder and pelleted to the furnace. When the furnace is added directly to the furnace, olivine sand can replace limestone and dolomite in the reduction of iron ore.
Compared to dolomite, olivine mine has a higher MgO content and a higher MgO / SiO2 ratio. Another feature that is superior to olivine dolomite is that the loss of water (water content) is low (between 0.3% and 0.7%). This reduces the degree of sintering and removes carbon dioxide emissions, thereby saving energy considerably. Maybe you want to buy olivine.