发明授权
US4378241A Method for achieving low sulfur levels in the DRI product from iron
oxide reducing kilns
失效
从氧化铁还原窑中获得DRI产品中低硫含量的方法
- 专利标题： Method for achieving low sulfur levels in the DRI product from iron oxide reducing kilns
- 专利标题（中）： 从氧化铁还原窑中获得DRI产品中低硫含量的方法
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申请号： US203275申请日： 1980-11-03
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公开(公告)号： US4378241A公开(公告)日： 1983-03-29
- 发明人: Alan C. Baker , Vitie P. Keran , Geoffrey N. Boulter
- 申请人： Alan C. Baker , Vitie P. Keran , Geoffrey N. Boulter
- 申请人地址： NY New York
- 专利权人： The Direct Reduction Corporation
- 当前专利权人： The Direct Reduction Corporation
- 当前专利权人地址： NY New York
- 主分类号： C21B13/08
- IPC分类号： C21B13/08
摘要：
A method for maintaining the sulfur level below 0.05% by weight, and preferably below 0.02% by weight, in the DRI product from the process for directly reducing ore containing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, fed at the materials feed end and at the discharge end of the kiln, as both fuel and reductant is disclosed, identifying the important factors in the process affecting the sulfur levels in the DRI and steps and means for properly controlling these factors.
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