发明名称 |
Method for preheating feed materials for the production of iron carbide |
摘要 |
The present invention provides a two-stage method for pretreating an iron oxide-containing feed material prior to conversion of the material into an iron carbide-containing product. The feed material is heated in the first stage in an oxidizing atmosphere to volatilize and/or thermally stabilize sulfide sulfur and evaporate moisture and heated in a reducing atmosphere in the second stage to reduce ferric iron to ferrous iron. The reduced material is then introduced into a system in which the iron oxides are substantially converted to iron carbide.
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申请公布号 |
US5810906(A) |
申请公布日期 |
1998.09.22 |
申请号 |
US19960703981 |
申请日期 |
1996.08.28 |
申请人 |
IRON CARBIDE HOLDINGS, LTD. |
发明人 |
STEPHENS, JR., FRANK M. |
分类号 |
C01B31/30;C21B13/00;C22B1/00;(IPC1-7):C22B1/02 |
主分类号 |
C01B31/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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