发明公开
EP1270748A2 Metal refining method using a two-step oxygen blowing sequence
有权
Metallfeinungsverfahren，特别是两阶段过程的氧
- 专利标题： Metal refining method using a two-step oxygen blowing sequence
- 专利标题（中）： Metallfeinungsverfahren，特别是两阶段过程的氧
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申请号： EP02007437.3申请日： 2002-03-29
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公开(公告)号： EP1270748A2公开(公告)日： 2003-01-02
- 发明人: Sarma, Balu , Selines, Ronald Joseph , Anderson, John Erling , Mahoney, William John
- 申请人： PRAXAIR TECHNOLOGY, INC.
- 申请人地址： 39 Old Ridgebury Road Danbury, CT 06810-5113 US
- 专利权人： PRAXAIR TECHNOLOGY, INC.
- 当前专利权人： PRAXAIR TECHNOLOGY, INC.
- 当前专利权人地址： 39 Old Ridgebury Road Danbury, CT 06810-5113 US
- 代理机构： Schwan - Schwan - Schorer
- 优先权： US886279 20010622
- 主分类号： C21C5/32
- IPC分类号： C21C5/32 ; C21C7/068
摘要：
A metal refining method particularly useful with a basic oxygen steelmaking process, wherein during an initial period, refining oxygen is provided into the furnace headspace surrounded by a shroud comprising oxygen and inert gas, and during a subsequent period refining oxygen is provided into the furnace headspace surrounded by a flame shroud.
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