Recovery of solid selectively constituted high purity aluminum c

Details Recovery of solid selectively constituted high purity aluminum c Recovery of solid selectively constituted high purity aluminum c

1974-01-11

1976-05-11

Stern, Edward

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

423137, 423495, 423496, 55 71, C01F 758, C01F 760, C01F 762

Patent

active

039564550

ABSTRACT:
Recovery of selectively constituted high purity aluminum chloride from the gaseous effluent of the chlorination of sodium contaminated alumina including the steps of purifying such gaseous effluent to provide essentially contaminant-free aluminum chloride in gaseous form in a gaseous carrier through selectively cooling the hot gaseous effluent to a temperature range well below the chlorination temperature but above the ambient condition condensation temperature of aluminum chloride yet sufficient to condense a selective portion of the condensable constituents therein including substantially all of the sodium aluminum chloride values therein, intermediate the steps of passing such gaseous effluent through filtration media to effect the separation of the condensed sodium aluminum chloride values and entrained solid and liquid particles therefrom and condensing high purity aluminum chloride values from the purified residual gaseous effluent to selectively constituted solid form at controlled temperatures.

REFERENCES:
patent: 1566269 (1925-12-01), Burgess
patent: 2446221 (1948-08-01), Ferguson
patent: 3175883 (1965-03-01), Lindsay et al.
patent: 3406009 (1968-10-01), Gould et al.
patent: 3582262 (1971-06-01), Tomany
patent: 3786135 (1974-01-01), King et al.
patent: 3811916 (1974-05-01), Russell et al.
patent: 3842163 (1974-10-01), Russell et al.

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