Process for the direct production of sponge iron particles and liquid crude iron from iron ore in lump form

US4543123A · kind A · utility

Assignee

• Korf Engineering GmbH · DE

Inventor

• Bogdan Vuletic · Goldkronach, DE

Key dates

• Filing date: Nov 14, 1983
• Grant date: Sep 24, 1985
• Expiry date: Nov 14, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/122
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a process for the direct production of sponge iron particles and liquid crude iron from iron ore in lump form, which is reduced in a direct reduction unit and fed in a hot condition to a melting gasifier, the sponge iron particles which are discharged from the direct reduction unit are separated into a fine grain fraction and a coarse grain fraction, and only the fine grain fraction is fed to the melting gasifier. That ensures economy of operation, without an excess of gas.