Effect of MgO source on sinter properties
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United States of America Patent
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Apr 14, 1987
Grant Date -
N/A
app pub date -
Feb 20, 1985
filing date -
Feb 20, 1985
priority date (Note) -
Expired
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Abstract
A process is provided for sintering iron-bearing particulate materials in which the final sinter contains 3/5.5% MgO, yet has substantially the same strength as a low MgO limestone sinter. At least 20% of the MgO in the final sinter product must come from free MgO-bearing material other than dolomite having a particle size smaller than 3/8 inch, but not more than 20% of it can have a particle size smaller than 1/64 inch. Also, not more than 25% of the MgO in the final product may come from dolomite. The invention includes the relatively higher strength MgO-containing sinter produced.
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