发明名称 |
Process and device for the extraction of valuable substances |
摘要 |
A process and melting furnace unit are provided for extracting valuable substances by reducing oxygen-bound metals which process includes exposing a charge in a first reaction zone of a furnace vessel to heat energy so that a liquid slag floats on a metal melting bath, feeding the metal bath to a second reaction zone of the furnace vessel where the slag comes intimately into contact with a reducing agent, and feeding additional heat energy to the melt in the second reaction zone to prevent hardening.
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申请公布号 |
US5500870(A) |
申请公布日期 |
1996.03.19 |
申请号 |
US19940339777 |
申请日期 |
1994.11.15 |
申请人 |
MANNESMANN AKTIENGESELLSCHAFT |
发明人 |
KOENIG, HERIBERT;STARK, HEINZ |
分类号 |
C21C5/52;C21C5/56;C22B5/10;F27B3/08;F27B3/20;(IPC1-7):F27D23/00 |
主分类号 |
C21C5/52 |
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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