Product

November 23, 2025
Barrington: The history of modern direct reduction
Written by Chris Barrington
One might be forgiven for thinking of direct-reduced iron (DRI) as an invention of green steel and the transition to carbon-neutral steelmaking. Not so!
Reduction of iron ore dates back thousands of years with the charcoal-based Bloomery furnace, which reduced iron ore in the solid state to sponge-like iron blooms, in effect a form of direct reduction (DR). Attempts to develop gas- or coal-based solid state reduction processes in the 18th and 19th centuries could not compete with scale and efficiency of blast furnaces.

