ACTIVE DEOXIDIZER OF LIQUID AND REFRACTORY HOT AND COLD SLAGS Russian patent published in 2022 - IPC C21C5/54 C21C1/00 C21C7/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and can be used for processing cast iron and steel in melting furnaces and out-of-furnace processing units. The active deoxidizer of liquid and refractory hot and cold slags contains silicon dioxide powder, which is a mixture of the following components, wt.%: SiO₂ not less than 80; Al₂O₃ no more than 5; Fe₂O₃ no more than 5; CaO no more than 5; MgO no more than 2; other components no more than 3.

EFFECT: invention makes it possible to increase fluidity, reduce steel and cast iron tapping temperatures, increase grain refinement in the structure of steel and cast iron during inoculation, as well as reduce the metal tapping time from the furnace and the pouring time into the gating system while lowering the metal pouring pressure.

1 cl, 1 ex