Refractory for containment of fluoride-rich salt melts

Abstract

In a process for the destruction of fluorine-containing waste in a molten salt such as molten sodium carbonate, forming fluoride salts in the molten salt bath, the destructive phase change of the conventional alpha-alumina refractory lining the molten salt retaining vessel in the presence of such fluoride salts is avoided by employing phase change resistant beta-alumina refractory bricks. <IMAGE>

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