Continuous smelting method

US4113468A · kind A · utility

Assignee

• Demag A.G. · DE

Inventors

• H. W. Gudenau · Aachen, DE
• Horst Konig · Duisburg, DE
• Gero Rath · Mülheim, DE
• Haye Roth · Breitscheid, DE

Key dates

• Filing date: Feb 24, 1977
• Grant date: Sep 12, 1978
• Expiry date: Feb 24, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22B9/18
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method is provided for producing steel with a very low carbon content of as low as 0.015% by continuously maintaining a foaming slag layer at a particular volume, and using as the charge a pre-reduced sponge with a specified carbon/oxygen ratio. The process includes utilizing a slag with a specific content of iron and magnesium oxide.