Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1998-05-21
2000-04-25
Willis, Prince
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
65 19, 423146, 423199, 423202, C22B 1300
Patent
active
060539631
ABSTRACT:
The present invention provides a method for treating rotary slag containing iron and sodium compounds. The method involves treating the slag in a sulfuric acid solution to convert the iron and sodium within the slag to iron sulfate and sodium sulfate. The iron sulfate (along with substantially all of the heavy metal contaminants) forms a precipitate, while the sodium sulfate remains in solution. The precipitate can then be separated from the solution.
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GNB Technologies, Inc.
McGuthry-Banks Tima
Willis Prince
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