Alumina-spinel type monolithic refractories

Details Alumina-spinel type monolithic refractories Alumina-spinel type monolithic refractories

C - Chemistry, Metallurgy

04

B

C04B 35/04 (2006.01) C04B 28/06 (2006.01) C04B 35/443 (2006.01) C04B 35/66 (2006.01)

Patent

CA 2076004

The object of the present invention is to provide an alumina-spinel type monolithic refractory having excellent spalling resistance, corrosion resistance and slag penetration resistance. The alumina-spinel type refractories according to the present invention used an alumina-spinel type clinker having a MgO:Al2O3 molar ratio ranging from 0.14:1.86 to 0.6:1.4 which can be simultaneously used with a spinel clinker having a close to theoretical composition with the balance consisting of an alumina material and alumina cement. Also, in order to inhibit the elongation of cracks an alumina crushed grain having a grain size ranging from 10 to 50 mm can be added to the alumina-spinel type monolithic refractories according to the present invention.

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