The basic idea of a blast furnace dates back more than 2,000 years to 1st century China. The technology has been updated and the size of furnaces increased but the principle remains the same.

San Francisco-based environmental research firm Global Energy Monitor (GEM) says a global switch from blast furnace/basic oxygen furnace (BOF) steelmaking to the scrap-fed electric arc furnace (EAF) ...

There are two main steel production methods. Currently, Port Talbot and Scunthorpe use the blast furnace-basic oxygen furnace method. The purpose of the blast furnace is to separate iron ore ...