PROCEDE ET APPAREIL POUR LA REDUCTION D'OXYDES DE FER DANS UNE ATMOSPHERE GAZEUSE REDUCTRICE.

摘要

This is a disclosure of a method and apparatus for reducing iron oxides to metallized pellets and includes the desulphurization of gases containing sulphur and/or compounds of sulphur, especially H2S. The disclosure is particularly concerned with the metallization of iron oxides through a gaseous reduction process wherein the spent gas is used to cool the pellets before discharge from the furnace, and then is upgraded for continued use. It has also been found that activated iron particles, such as sponge iron and metallized pellets, are highly effective for the removal of sulphur impurities from such gas.