Method and device for producing pig iron and/or pig iron...

Details Method and device for producing pig iron and/or pig iron... Method and device for producing pig iron and/or pig iron...

2008-09-16

2008-09-16

King, Roy (Department: 1793)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S528000, C075S538000, C075S553000, C075S569000

Reexamination Certificate

active

10503117

ABSTRACT:
Apparatus and process for producing metal products, in which a metal-containing charge material is melted in a melting unit, and a working gas, in particular an at least partially reducing working gas, is additionally produced in the melting unit. The working gas produced is extracted and if appropriate after cleaning, is used as a carrier gas, at least in part for—preferably pneumatic—transport of an at least partially reduced metal-containing material in the form of fine particles.

REFERENCES:
patent: 4072504 (1978-02-01), Perdahl et al.
patent: 4849015 (1989-07-01), Fassbinder et al.
patent: 4978387 (1990-12-01), Kepplinger
patent: 5185032 (1993-02-01), Whipp
patent: 5961690 (1999-10-01), Kepplinger et al.
patent: 2 143 852 (1973-02-01), None
patent: 97/04136 (1997-02-01), None
patent: 98/15663 (1998-04-01), None
International Search Report dated Jun. 2, 2003.
U.S. 5,944,871—English equivalent for WO 97/04136.

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