Refining ferroalloys
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United States of America Patent
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Mar 27, 2012
Grant Date -
Mar 23, 2006
app pub date -
Jun 9, 2003
filing date -
Jun 11, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method of refining a ferroalloy includes the step of blowing molecular oxygen or a gas mixture including molecular oxygen into a melt of the ferroalloy. A metallurgically acceptable particulate material is introduced from above into the melt. The particulate material is carried into the melt in a first supersonic gas jet which travels to the melt shrouded by a second gas jet.
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