Interaction | Reaction | Process Data Page
Calcium phosphate is reduced to phosphorus by coke. (The actual reducing agent is carbon monoxide.)Silica is added which reacts with the calcium oxide to form calcium silicate slag which removes impurities.
W. Büchner, R. Schliebs, G. Winter, K.H. Büchel, Industrial Inorganic Chemistry, VCH, 1989
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