Calcium silicate slag is high quality silica (SiO2 ≥ 98%) and high-
quality limestone (CaCO3 ≥ 97%) as raw materials. Using clean 
electrical energy, at high temperature SiO2 + CaCO3 → CaSiO3 
+ CO2 reaction melting synthesis. Premelted complex calcium silic
ate is synthetic products , which is more stable than natural w
ollastonite’s chemical composition and phase structure of uniform
. 
    After water quenching, the melted material become cryptocrystallin
e vitreous. The final product is good spreadability、good 
condition and very little impurity. Loss on ignition is almost zero, ca
lcium silicate is ideal for metallurgical continuous casting mold 
flux . It also is the ideal raw material for electrode coated.
Calcium silicate slag refining physical and chemical indicators: 
 
Specification                           Chemical composition(%)
                                CaO    SiO2   Al2O3   CaF2   TiO2   MgO
Calcium silicate with CaF2     40-45   40-45  ≤3.0   5-10  ≤0.05 ≤3.0
Calcium silicate without CaF2  45-50   45-50  ≤3.0    /    ≤0.05 ≤3.0
Commonly particle size      3-40mm\5-30mm\200mesh-0
 
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Jessie Su
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