PROCEDIMIENTO DE REDUCCION DIRECTA GASEOSA DE MINERALES DE METAL OXIDICO CON ENFRIAMIENTO DEL PRODUCTO REDUCIDO USANDO GAS A DOS TEMPERATURAS

摘要

A process for the direct gaseous reduction of iron ore to sponge iron wherein the sponge iron is cooled with a carboncontaining cooling gas by a dual temperature procedure that increases transfer of carbon from the cooling gas to the sponge iron and thereby permits the production of a product having a combination of relatively low or moderate metallization and relatively high potential metallization. Increased productivity of the direct reduction plant and of the overall integrated steel plant are achieved.