FeO content estimation in steel slag using Raman spectroscopy in NIR range

The knowledge about FeO content in steel slags after the discharge process is very important for steelmaking and it influences the latter technological process. Currently used methods require inserting a probe into the ladle. Then the slag is sent and analyzed in the laboratory. As it is a time consuming process, the authors propose a novel method of FeO content estimation, based on the use of Raman spectroscopy. Its main advantage is instantaneous result of the steel slag composition measurement.