Title:
溶融鉄を製造する方法
Document Type and Number:
Japanese Patent JP4790124
Kind Code:
B2
Abstract:
A process and an apparatus for producing metals from a metalliferous feed material are disclosed. The process includes the steps of partially reducing and at least partially melting a metalliferous feed material in a pre-reduction/melting means and completely reducing the partially reduced feed material in a reduction means. The pre-reduction/melting means is positioned directly above the reduction means and communicates with the reduction means so that at least partially molten, partially reduced feed material flows downwardly into a central region of the reduction means. The reduction means includes a vessel that contains a molten bath having a metal layer and a slag layer on the metal layer. The process includes injecting oxygen-containing gas into the reduction means and post-combusting reaction gas generated in the molten bath and injecting oxygen-containing gas into the pre-reduction/melting means and post-combusting reaction gas discharged from the reduction means. The process further includes injecting solid carbonaceous material and a carrier gas into a metal rich region of the molten bath and causing upward movement of splashes, droplets and streams of molten material which forms a transition zone.
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Inventors:
Dry, Rodney, James
Application Number:
JP2000576066A
Publication Date:
October 12, 2011
Filing Date:
October 14, 1999
Export Citation:
Assignee:
Technological Resources Proprietary Limited
International Classes:
C21B11/08; C21B13/00; C21B13/14; C21C5/56; C22B5/18; F27B3/18; F27B3/22; F27D13/00; F27D17/00; F27D9/00
Domestic Patent References:
| JPH03503659A | 1991-08-15 | |||
| JPS5178720A | 1976-07-08 | |||
| JPH06108133A | 1994-04-19 |
Foreign References:
| WO1996031627A1 | 1996-10-10 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto