Förfarande och framställning av järnsvamp, reducerat järnpulver och förfarande för framställning av detsamma

摘要

A method for manufacturing sponge iron includes heating iron oxide together with a solid reducing agent to reduce the iron oxide into sponge iron, wherein the iron oxide includes a mixture of powdered hematite and powdered iron ore or a mixture of powdered hematite and powdered mill scale, the powdered hematite has a specific surface area of 2.0 m²/g or more, and the content of the powdered hematite is 5-45% by mass with respect to the total quantity of iron oxide.