C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/10 (2006.01) B01J 19/00 (2006.01) B01J 19/02 (2006.01) C04B 41/45 (2006.01) C04B 41/50 (2006.01) C04B 41/81 (2006.01) C04B 41/85 (2006.01) F27D 1/00 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2124914
Diffusion resistant refractory such as alumina for containment of destructive fluorine and fluorine compounds in the molten salt oxidation of fluorine-containing organic waste, formed of a porous refractory such as porous alumina impregnated with a salt such as sodium carbonate, which is non-reactive with the refractory and compatible with the molten salt reaction medium, thereby effectively blocking diffusion baths for fluorine and its compounds from the molten salt bath through the refractory. Conventional refractories such as alumina bricks containing about 1 to about 25% open porosity can be placed in a molten liquid salt such as molten sodium carbonate, in a vessel which can be pressurized to force the molten sodium carbonate into the pores of the alumina brick to impregnate same and form alumina brick resistant to diffusion of fluoride-rich molten salt.
Ridout & Maybee Llp
Rockwell International Corporation
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