Hematite. Processing and Applications

Résumé

In the paper are shown the history, processing and applications of hematite.
Hematite is an oxide of iron having the composition Fe₂O₃. Pure hematite, also called “red ore” contains 70% Fe.
Manufacturing processes for steel are made in furnaces (open hearth, Bessemer processes, oxygen furnace, electric arc furnaces).
Hematite is used both as an ore of iron and as an industrial mineral in order to produce intermediate products such as: - Sinter; - Pellets; - Pig iron; - Malleable cast iron; - High duty cast iron; - Wrought iron; - Directly reduced iron; - Iron carbide; - Steel.