FLUX FOR CONTINUOUS CASTING OF STEEL IN THE FORM OF PELLETS AND METHOD OF ITS PRODUCTION Russian patent published in 1996 - IPC

FIELD: ferrous metallurgy. SUBSTANCE: the flux contains the following constituents , mass percent: silicon oxides - 28 to 38; aluminium oxides - 6 to 14; carbon - 4 to 8; oxides of alkali metals - 6 to 15; fluorides of alkaline-earth metals - 8 to 20; silicofluorides of alkaline-earth metals - 0.3 to 2.2. To procedure pellets, aqueous suspension of the main and auxiliary reagents is prepared, then pellets are produced from this suspension, their thermal treatment is carried out by hydrogen-containing gas heated up to 1600 to 2400 C, fed perpendicularly to the axis of flow of flying drops to the zone of formation of space in pellets. EFFECT: preserved reactivity and mechanical strength of pellets at prolonged storage. 2 cl, 1 tbl