Method and device for producing pig iron or liquid steel...

Details Method and device for producing pig iron or liquid steel... Method and device for producing pig iron or liquid steel...

2005-02-22

2005-02-22

Andrews, Melvyn (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S472000, C266S160000, C266S197000

Reexamination Certificate

active

06858061

ABSTRACT:
The invention relates to a process for producing pig iron or liquid primary steel products in a blast furnace, CO2being substantially removed from at least a partial stream of a top gas emerging from a reduction shaft furnace (1), and this partial stream if appropriate being heated and being introduced into the blast furnace as reduction gas, and to a plant for carrying out this process, the top gas being introduced into the lower region of the blast-furnace shaft. This measure results in an improved energy balance and improved process management compared to the prior art.

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