Process for producing liquid crude iron and reduction gas

US4317677A · kind A · utility

Assignee

• Korf-Stahl AG · DE

Inventors

• Ralph Weber · Rio de Janeiro, BR
• Emil Elsner · Baden-Baden, DE
• Walter Maschlanka · Gaggenau, DE
• Bernt Rollinger · Baden-Baden, DE
• Gerhard Sanders · Baden-Baden, DE

Key dates

• Filing date: Oct 3, 1979
• Grant date: Mar 2, 1982
• Expiry date: Oct 3, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/134
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the production of molten crude iron and reduction gas is described wherein the molten iron and gas are formed in a smelting gasifier, to which is introduced at the upper portion thereof preheated sponge iron of particle size between 3 mm and 30 mm and coal to form a fluidized bed, and an oxygen-containing gas at the lower portion thereof, and controlling the ratio of oxygen-containing gas and coal to maintain a high temperature zone in the lower portion of the gasifier and a lower temperature zone in the upper portion thereof, the oxygen-containing gas being introduced substantially immediately above the resulting melt which is formed at the bottom of the gasifier.