Quantitative phase evaluation of converter slags

The slags formed in the LD vessel during the refining process turn out with different chemical compositions, mineralogical structures and physical pro perties, in dependence on the charging and processing conditions. Electron probe microanalysis (EPMA) combined with a data processing method for miner alogical analysis was used to characterize the mineralogical phases in LD s lags and moreover to determine their volume fractions. By this method some correlations between the phase contents and the chemical composition of LD slags were established. The diagrams gained from this work have proven to b e a valuable aid for understanding the interrelationships between the chemi cal composition, the mineralogical structure and some physical properties o f LD stags.