High emissivity refractory coating process for manufacturing...

Details High emissivity refractory coating process for manufacturing... High emissivity refractory coating process for manufacturing...

C - Chemistry, Metallurgy

04

B

117/162, 261/6

C04B 35/56 (2006.01)

Patent

CA 1199042

ABSTRACT OF THE DISCLOSURE A high emissivity refractory coating comprising a cured coating composition comprised of a powder mixture containing 17 to 22% by weight of silicon carbide, 6 to 11% by weight of graphite, 17 to 22% by weight of aluminum oxide, 2 to 5% by weight of silicon nitride, 8 to 12% by weight of tricobalt tetroxide, 18 to 22% by weight of cobalt aluminum oxide and 18 to 23% by weight of ferrosilicon, and an aqueous solution of potassium silicate. The high emissivity refractory coating is applied onto the surface of furnace refractories or ceramic fibers. The coating does not peel from the surface of the furnace wall and increases the energy efficiency of the furnace.

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