High durability refractory composition
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United States of America Patent
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Jul 18, 2006
Grant Date -
Jan 12, 2006
app pub date -
Jul 12, 2004
filing date -
Jul 12, 2004
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Abstract
A high temperature hot strength magnesia-based refractory composition having high durability at elevated temperatures wherein a sulfamic acid in combination with an independent calcia source is added to a magnesia-based refractory material. The invention also provides for a refractory gunning composition for use in the production or repair of metallurgical furnace linings.
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