发明申请
- 专利标题: METHOD AND APPARATUS FOR MAKING METALLIC IRON
- 专利标题(中): 制造金属铁的方法和装置
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申请号: US11855793申请日: 2007-09-14
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公开(公告)号: US20090025511A1公开(公告)日: 2009-01-29
- 发明人: Takuya Negami , Kazuo Kunii , Shinichi Inaba , Masataka Shimizu , Isao Kobayashi , Yoshimichi Takenaka , Toshihide Matsumura , Akira Uragami , Takashi Kujirai , Osamu Tsuchiya , Kimio Sugiyama , Shuzo Ito , Shoichi Kikuchi
- 申请人: Takuya Negami , Kazuo Kunii , Shinichi Inaba , Masataka Shimizu , Isao Kobayashi , Yoshimichi Takenaka , Toshihide Matsumura , Akira Uragami , Takashi Kujirai , Osamu Tsuchiya , Kimio Sugiyama , Shuzo Ito , Shoichi Kikuchi
- 申请人地址: JP Hyogo
- 专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO
- 当前专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO
- 当前专利权人地址: JP Hyogo
- 优先权: JPHEI8-59801 19960315; JPHEI8-257114 19960927; JPHEI8-257115 19960927; JPHEI8-257116 19960927; JPHEI8-257117 19960927; JPHEI8-257118 19960927
- 主分类号: C22B5/10
- IPC分类号: C22B5/10
摘要:
A method of making metallic iron in which a compact, containing iron oxide such as iron ore or the like and a carbonaceous reductant such as coal or the like, is used as material, and the iron oxide is reduced through the application of heat, thereby making metallic iron. In the course of this reduction, a shell composed of metallic iron is generated and grown on the surface of the compact, and slag aggregates inside the shell. This reduction continues until substantially no iron oxide is present within the metallic iron shell. Subsequently, heating is further performed to melt the metallic iron and slag. Molten metallic iron and molten slag are separated one from the other, thereby obtaining metallic iron with a relatively high metallization ratio. Through the employment of an apparatus for making metallic iron of the present invention, the above-described method is efficiently carried out, and metallic iron having a high iron purity can be made continuously as well as productively not only from iron oxide having a high iron content but also from iron oxide having a relatively low iron content.
公开/授权文献
- US07938883B2 Method and apparatus for making metallic iron 公开/授权日:2011-05-10