Basic oxygen furnace (BOF) slag cooling: Laboratory characteristics and prediction calculations

Experiments are in good agreement with the calculations concerning the nature of the main phases depending on the influence of oxygen. The sequence of crystallisation, the variations in the nature of silicate phases depending on the temperature and the evolution of the phosphorus content are documented. Proportions of low and high phosphorus-bearing calcium silicates are evolving with cooling, which will have to be considered when optimising phosphorus retrieval.