Impurity Free Silica Sand Application: Glass Industry
Silica sand purification process. Through scrubbing and desliming, magnetic separation, chute gravity separation, flotation, scouring or combined process, the impurities are removed from silica sand. The high purity silica sand with qualified particle size and impurity content can be required. 1.The calcium oxide then reacts with silica (sand) impurities in the haematite, to produce slag – which is calcium silicate. calcium oxide + silica → calcium silicate. CaO(s) + SiO 2 (s.
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