发明申请
- 专利标题: Method for reducing chromium containing raw material
- 专利标题(中): 减少含铬原料的方法
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申请号: US10541457申请日: 2003-12-26
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公开(公告)号: US20060096420A1公开(公告)日: 2006-05-11
- 发明人: Hiroshi Sugitatsu , Hidetoshi Tanaka , Takao Harada , Itsuo Miyahara , Isao Kobayashi
- 申请人: Hiroshi Sugitatsu , Hidetoshi Tanaka , Takao Harada , Itsuo Miyahara , Isao Kobayashi
- 优先权: JP2003-001200 20030107
- 国际申请: PCT/JP03/16913 WO 20031226
- 主分类号: C21B15/00
- IPC分类号: C21B15/00
摘要:
An object of the present invention is to provide a method for reducing a chromium-containing material at a high chromium reduction degree. In the method of the present invention, a mixture of a feedstock containing chromium oxide and a carbonaceous reductant is heated and reduced by radiation heating in a moving hearth furnace. The average rate of raising the temperature of the mixture in the reduction is preferably 13.6° C./s or higher in the period from the initiation of the radiation heating of the mixture until the mixture reaches 1,114° C.
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