Process for feeding iron sponge into an electric arc furnace

US4290800A · kind A · utility

Assignee

• Hamburger Stahlwerke GmbH · DE

Inventors

• Siegfried Sensis · Seevetal, DE
• Joachim Schwerdtfeger · Barum, DE
• Klaus Walden · Buxtehude, DE
• Dieter Ameling · Schwiederstorf, DE

Key dates

• Filing date: Sep 17, 1979
• Grant date: Sep 22, 1981
• Expiry date: Sep 17, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Iron sponge, containing at least 0.5% carbon, is preheated with an oxidizing gas as the gas flows in a direction traverse to the direction of the sponge, without combustion of the iron sponge.