The Constitution of Furnace Slags in Ferrous Practice

During recent years great advances nave been made in the study of the reactions taking place during the manufacture of steel by the two open hearth processes. With increased knowledge attention has come to be focussed less on the metal itself and more on the slag layer which forms on the surface of the metal bath. The important part played by this layer is now generally accepted and it is recognized that further advances in knowledge can only come with improved understanding of the complex materials composing it. The effect has been to concentrate attention on a new and fascinating branch of physical chemistry - the physical chemistry of the slag forming compounds at temperatures of 120