| 摘要 |
In a metal refining process where oxygen is blown into the molten melt from both above and below, the oxygen serving to remove carbon impurities from the melt, and carbon monoxide being emitted from the melt and burned by the oxygen from above so as to add heat to the melt, the improvement in which the oxygen from above is introduced at a location exterior to an opening in a vessel above the melt. The invention is particularly suited for use with the Q-BOP steelmaking process.
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