发明授权
- 专利标题： IMPROVED METHOD OF DESULFURIZATION IN VACUUM PROCESSING OF STEEL
- 专利标题（中）： 脱硫IN真空脱气钢化法
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申请号： EP93914005.9申请日： 1993-05-19
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公开(公告)号： EP0646184B1公开(公告)日： 2000-01-05
- 发明人: BOGAN, Robert S. , HJERPE, Brad , MARQUART, Roger L. , REISINGER, James D.
- 申请人： USX ENGINEERS AND CONSULTANTS, INC.
- 申请人地址： 600 Grant Street Pittsburgh Pennsylvania 15219-4776 US
- 专利权人： USX ENGINEERS AND CONSULTANTS, INC.
- 当前专利权人： USX ENGINEERS AND CONSULTANTS, INC.
- 当前专利权人地址： 600 Grant Street Pittsburgh Pennsylvania 15219-4776 US
- 代理机构： Lerwill, John
- 优先权： US941203 19920903
- 国际公布： WO9405816 19940317
- 主分类号： C21C7/10
- IPC分类号： C21C7/10 ; C21C7/064
摘要：
A method for desulfurizing molten steel while the steel is subjected to a vaccum dehydrogenation treatment, comprising adding to the steel in a vacuum chamber a desulfurizing agent in lump form and comprising, by weight percent, about 50 % CaO, about 38 % CaF2, and about 10 % MgO.
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