METHOD OF STEEL PROCESSING IN INTERMEDIATE LADLE Russian patent published in 2014 - IPC B22D11/108 

FIELD: metallurgy.

SUBSTANCE: to an intermediate ladle filled with steel to a working level there supplied to a bath level is a heat-insulating mixture, a slag-forming mixture and a magnesium-calcium iron-rich flux with the maximum grain size of not more than 8 mm. The magnesium-calcium iron-rich flux contains the following, wt %: MgO - at least 61, CaO - 5-20, Fe₂O₃ - 3-12, SiO₂ - not more than 8. An amount of the added magnesium-calcium iron-rich flux provides for the concentration of MgO in the slag of 8-22 wt %.

EFFECT: increasing the service life of a lining of an intermediate ladle and reducing the content of non-metallic inclusions in steel.

4 cl, 3 tbl