PROCEDURE FOR PRODUCTION OF VANADIUM SLAG AND STEEL ALLOYED WITH VANADIUM Russian patent published in 2011 - IPC C21C5/28 

FIELD: metallurgy.

SUBSTANCE: procedure consists in processing vanadium iron in oxygen converter for production of vanadium slag and semi-finished product. According to the procedure vanadium slag is poured into a converter, is blasted with oxygen and cooled with supplied cooling agents. Further, semi-finished product is processed to steel. The procedure consists in charging cooling agents into converter, in pouring semi-finished product, in igniting and blasting melt with oxygen, in portion addition of slag forming agents during blasting, in tapping metal into a ladle, in its carbonisation, in de-oxidation, alloying and final concentration. As cooling agents there are used granulated vanadium iron of fractions 5-15 mm and scale; also, their summary consumption is 90-235 kg/t of metal.

EFFECT: increased contents of vanadium in vanadium slag and liquid iron saving.

2 cl, 1 tbl, 2 ex