Refractory for containment of fluoride-rich salt melts

Details Refractory for containment of fluoride-rich salt melts Refractory for containment of fluoride-rich salt melts

1994-02-01

1995-12-19

Mai, Ngoclan

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

588206, 588207, 264 30, C22B 700

Patent

active

054769914

ABSTRACT:
Molten salt process for destruction of fluorine-containing waste in a molten salt such as molten sodium carbonate, and forming fluoride salts in the molten salt bath. The destructive phase change of conventional alpha-alumina refractory of the molten salt retaining vessel in the presence of such fluoride salts is avoided according to the invention by employing phase change resistant beta-alumina refractory bricks.

REFERENCES:
patent: 3773558 (1973-11-01), Charbonnier et al.
patent: 3859427 (1975-01-01), Francis et al.
patent: 4012563 (1977-03-01), Farrington et al.
patent: 4193954 (1980-03-01), Speronello
patent: 4447262 (1984-05-01), Gay et al.
patent: 4631183 (1986-12-01), Lalancette et al.

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