发明名称 |
VERFAHREN ZUR ENTSCHWEFELUNG VON ROHEISENSCHMELZEN |
摘要 |
<p>A pig iron is desulphurised by mixing it with the slag remaining after tapping off a steel alloy from a furnace. The slag composition is, in %: 45-70 CaO; 2-17 SiO2; 4-8 MgO; 14-22 Al2O3; 0.5-6 FeO plus molten metal residue from the steel treatment phase. The pig iron is added at 1250-1400 degrees C and after an initial stirring an immersion lance is used to introduce the powder desulphurising agent together with a carrier gas which ensures further stirring.</p> |
申请公布号 |
AT202149(T) |
申请公布日期 |
2001.06.15 |
申请号 |
AT19960118953T |
申请日期 |
1996.11.27 |
申请人 |
EKO STAHL GMBH |
发明人 |
SCHMIDT, HANS-ULRICH;HOLZHEY, WERNER;KRUSCHKE, EBERHARD;WENZEL, KLAUS |
分类号 |
C21C1/02;(IPC1-7):C21C1/02 |
主分类号 |
C21C1/02 |
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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