发明名称 |
Process for refining hot metal |
摘要 |
The invention relates to a process for producing steel of low phosphorus content from hot metal of usual phosphorus content, in which the hot metal is simultaneously decarburized and dephosphorized in a single process step in a metallurgical vessel, in particular in a converter. The refining gas consisting predominantly or completely of technically pure oxygen is top-blown into the melt, particularly from below. The vessel is charged with hot metal containing manganese in an amount of less than 0.2% by weight. Lime is then added and refining is carried out down to a final phosphorus content of 0.005% by weight or less in the steel at the end of blowing, without a change of slag.
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申请公布号 |
US4604138(A) |
申请公布日期 |
1986.08.05 |
申请号 |
US19850774632 |
申请日期 |
1985.09.11 |
申请人 |
THYSSEN STAHL AG |
发明人 |
HOEFFKEN, ERICH;FLORIN, WOLFRAM;HAMMER, RUDOLF |
分类号 |
C21C5/32;C21C5/34;C21C5/35;C21C7/064;(IPC1-7):C21C5/34 |
主分类号 |
C21C5/32 |
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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