BRIQUET MADE OF SLAG-FORMING MIXTURE FOR STEEL PURIFICATION Russian patent published in 2018 - IPC C22B1/24 C21C7/04 C21C7/76 

FIELD: metallurgy.

SUBSTANCE: invention relates to the metallurgical industry and can be used for purification of various steel grades, guidance, liquefaction and neutralization of slags in bucket-furnace aggregates at out-of-furnace processing of steels, for the accelerated obtaining of refining slags on the surface of the liquid melt and neutralizing their destructive effect on the lining by forming in the interaction zone a slag with a magnesian lining of a bucket of protective spinel. Briquette has the shape of a cylinder and dried at a temperature of 50–80 °C for at least 15 hours, while corundum material is used for spherical corundum, and as a waste product of white alundum – high-alumina non-melting with the following ratio of ingredients, mass%: spherical corundum 80–90, high-alumina non-melting 5–10, organic binder 5–7.

EFFECT: invention ensures the stability of the chemical composition of the refining slag, increases the basicity of the slag, accelerates the deoxidation process, and also reduces the aggressive impact on the lining and scree formation during transportation and material return.

1 cl, 1 tbl, 5 ex