The slag can be divided into acidic slag and alkaline slag according to alkalinity, R<1 is called acid slag, and R>1 is called alkaline slag.

The slag is classified into oxidized slag and reducing slag according to oxidizing property, and TFe<0.5% is reduced slag.

The slag is further divided into converter slag, slag washing slag and refining slag according to the use.

How is the steel making slag classified according to its chemical composition? for example.

Steel making slag is divided into components according to their composition:

(1) acidic oxides: such as SiO2, P2O5;

(2) basic oxides: such as CaO, MgO, MnO, FeO;

(3) Amphoteric oxides: such as Al2O3, Fe2O3;

(4) Other substances: CaS, FeS, MnS, if added fluorite and CaF2.