发明名称 |
METHOD FOR DESULFURIZING A MOLTEN IRON BY INJECTION |
摘要 |
Injection-desulfurization of a molten iron is carried out in a low cost by using powdery CaCO3 obtained by pulverizing limestone as a desulfurizing agent. This injection-desulfurization also can be attained by using a powdery mixture in which a main ingredient is said powdery calcium carbonate and not more than 30% by weight of powdery quicklime is added thereto, a powdery mixture in which a main ingredient is said powdery calcium carbonate and 5 DIFFERENCE 20% by weight of a carbonaceous material and 2 DIFFERENCE 15% by weight of at least one of halides of alkali and alkaline earth metals are added thereto, or a powdery mixture in which a main ingredient is said calcium carbonate and 5 DIFFERENCE 20% by weight of a carbonaceous material, 2 DIFFERENCE 15% by weight of at least one of halides of alkali and alkaline earth metals and not more than 30% by weight of powdery quicklime are added thereto, as the desulfurizing agent. |
申请公布号 |
DE3378417(D1) |
申请公布日期 |
1988.12.15 |
申请号 |
DE19833378417 |
申请日期 |
1983.09.15 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
YAMADA, SUMIO;SUDO, FUMIO;MORISHITA, HITOSHI |
分类号 |
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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