| 摘要 |
PROBLEM TO BE SOLVED: To provide a refractory capable of satisfying recent requirements for further enhancement of corrosion resistance and strength, and a ferro-silicon nitride powder used for producing the refractory. SOLUTION: The ferro-silicon nitride powder contains 0.1 to 5 mass % of a saturated fatty acid having 10 to 24 carbon atoms or its salt. A method of producing the ferro-silicon nitride comprises producing an ingot of the ferro- silicon nitride by nitriding a raw material containing iron silicide (FeSi) and/or a Si component and an Fe component, then pulverizing the produced ingot, adding the saturated fatty acid having 10 to 24 carbon atoms or its salt into the resulting powder and further finely pulverizing the resulting mixture while keeping the temperature at 30 to 150 deg.C. The refractory contains the ferro-silicon nitride powder, a heat-resistant aggregate and carbon powder and/or an organic binder being converted into carbon when it is heated. |
