Flodin process

Image of the patent of the furnace

Flodin process is a direct reduction process for manufacturing iron, developed by Gustaf Henning Flodin from Sweden.

Using a specially constructed electric arc furnace, a mixture of hematite and coal are smelted in a continuous process, with the reduced metal accumulating at the bottom of the furnace, where it can be tapped off.

External links

Popular Science January 1926 p.55
US Patent US1691272 - Method of producing metals and metal alloys low in carbon - Filed March 18, 1924 by Gustav Henning Flodin

Iron and steel production

History of ferrous metallurgy

Iron production
(Ironworks)

Smelting	Bloomery (produces sponge iron) Blast furnace (Cold blast • Hot blast) (produces pig iron)

Secondary	Wrought iron (via Finery forge or Puddling furnace) Cast iron (via Cupola furnace or Induction furnace)

Steelmaking
(Steel mill)

Primary (Pre-1850)	Pattern welding (Damascus steel) Crucible steel Tatara furnace Cementation process

Primary (Post-1850)	Bessemer process Open hearth furnace Electric arc furnace Basic oxygen process HIsarna process

Secondary	Electro-slag remelting Vacuum arc remelting Argon oxygen decarburization

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