Process of producing sponge iron by a direct reduction of...

Details Process of producing sponge iron by a direct reduction of... Process of producing sponge iron by a direct reduction of...

C - Chemistry, Metallurgy

21

B

53/30

C21B 13/08 (2006.01) C21B 13/14 (2006.01)

Patent

CA 1204943

ABSTRACT OF THE DISCLOSURE The present invention is concerned with a process of producing sponge iron by a direct reduction of iron oxide- containing materials. Said process is characterized in that fine-grained material which contains iron oxide is prere- duced in a fluidized bed and is subsequently completely re- duced in a rotary kiln. In order to avoid agglomeration and incrustation in the rotary kiln, the prereduction is carried out to effect a metallization of 50 to 80%,

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