发明名称 |
Reducing oxygen content of copper melt comprises melting copper initially in shaft furnace, and subsequently feeding it to treatment furnace via transporting channel |
摘要 |
Reducing the oxygen content of a copper melt comprises melting the copper initially in a shaft furnace, and subsequently feeding it to a treatment furnace via a transporting channel so that rinsing gas in the region of both the channel and the treatment furnace rises by flowing from the porous plugs. The rinsing gas containing 30-70% reduction gas and 70-30% inert gas flows from at least one of the plugs. The melt is electrically heated/moved in the treatment furnace. An independent claim is also included for an apparatus for reducing the oxygen content of a copper melt comprising a treatment furnace (1) having an inlet (2), a central part (12) and an outlet (3). Preferred Features: The reduction gas is provided with carbon monoxide, preferably carbon dioxide. The porous plug is made of Al2O3, SiC, SiO2 or MgO.
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申请公布号 |
DE10035593(A1) |
申请公布日期 |
2002.01.31 |
申请号 |
DE20001035593 |
申请日期 |
2000.07.21 |
申请人 |
NORDDEUTSCHE AFFINERIE AG |
发明人 |
SCHLIEFER, HEINRICH;KHOURY, ALEXANDER;SCHNEIDER, STEFAN |
分类号 |
C22B9/05;C22B15/00;C22B15/14;(IPC1-7):C22B15/14 |
主分类号 |
C22B9/05 |
代理机构 |
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主权项 |
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地址 |
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