High alumina-chromia plastic refractory mix

Details High alumina-chromia plastic refractory mix High alumina-chromia plastic refractory mix

C - Chemistry, Metallurgy

04

B

261/39

C04B 35/10 (2006.01) C04B 35/105 (2006.01) C04B 35/12 (2006.01) C04B 35/66 (2006.01)

Patent

CA 1098550

ABSTRACT OF THE DISCLOSURE A new and improved high alumina-chromia plastic refractory mix is provided wherein the predominant aggregate component of fused alumina imparts a strong skeletal aggregate structure of superior uniform heat stability. The matrix is comprised predominantly of materials having a high specific surface area of at least about 0.1 sq. m./g., high purity and a trigonal phase solid solution upon firing. The resultant refractory is characterized by an ability to withstand corrosive- erosive attack of molten metals and their acid, semibasic and basic slags during repeated exposure thereto together with excellent volume stability with minor glass development, superior structural heat stability, low apparent porosity, a high contact angle with molten steel and a strong abrasion resistant matrix.

302048

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