Aluminum electrolytic cell cathode waste recovery

Details Aluminum electrolytic cell cathode waste recovery Aluminum electrolytic cell cathode waste recovery

1981-05-14

1982-10-19

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423115, 423116, 423128, 423132, 423483, 423496, 423551, 423555, 423556, 423630, 204 67, C01B 719

Patent

active

043550177

ABSTRACT:
Recovery of fluoride values from carbonaceous waste cathode materials is achieved by reacting the waste materials with oxygen, water, and sulfur dioxide at temperatures between about 600.degree. C. and 1200.degree. C.

REFERENCES:
patent: 1871723 (1932-08-01), Morrow
patent: 2732283 (1956-01-01), Clukey
patent: 3073676 (1963-01-01), Mollard et al.
patent: 4113832 (1978-09-01), Bell et al.
patent: 4158701 (1979-06-01), Anderson et al.
patent: 4160808 (1979-07-01), Anderson et al.
patent: 4160809 (1976-07-01), Anderson et al.

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