Process for producing pig iron using coal degassing reactor to f

Details Process for producing pig iron using coal degassing reactor to f Process for producing pig iron using coal degassing reactor to f

1987-12-15

1989-08-15

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 40, 201 27, C22B 1302

Patent

active

048571059

ABSTRACT:
A novel process for producing molten pig iron or steel raw material is described. The pig iron is initially at least partly reduced to sponge iron by means of a reducing gas and is then melted in a melting gasifier, being optionally finally reduced. Apart from the sponge iron, the melting gasifier is supplied with coal at least partly degassed by a hot gas and oxygen-containing gas. The hot gas used for this purpose is formed from the gas produced during degassing and a supplied, oxygen-containing gas. The latter is preferably constituted by air, which can be preheated by the gas produced during degassing.

REFERENCES:
patent: 3414480 (1968-12-01), Stotler et al.
patent: 4678508 (1987-07-01), Saeki et al.

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