Method of separating aluminum from impurities

Claim 1

A PROCESS FOR SEPARATION OF ALUMINUM FORM MATERAIL THAT CONTAINS ALUMINUM ADAPTED FOR CONVERSION TO A VOLATILE SUBHALIDE FORM BY REACTION WITH HALIDE, AND THAT CONTAINS ANOTHER METAL WHICH IS SELECTED FROM THE CLASS CONSISTING OF MANGANESE, IRON, SILICON, TITANIUM, COPPER, CHROMIUM AND NICKEL, AND WHICH IS ADAPTED TO DISTIL IN DISSOCIATING HALIDE FORM ALONG WITH ALUMINUM WHEN THE LATTER IS CONVERTED TO VOLATILE SUBHALIDE FORM, COMPRISING: REACTING THE MATERIAL WITH HALIDE AT A TEMPERATURE OF AT LEAST ABOUT 1000* C. TO PRODUCE A GASEOUS MIXTURE CONTAINING ALUMINUM SUBHALIDE AND SAID OTHER METAL IN VOLATILE, DISSOCIATING HALIDE FORM, CONDUCTING SAID GASEOUS MIXTURE THROUGH A CONDENSING REGION FOR CAUSING REACTIVE CONDENSATION OF METALLIC MATERIAL BY DECOMPOSITION OF SAID DISSOCIATING HALIDES, EFFECTING SAID REACTIVE CONDENSATION OF METALLIC MATERIAL AS CONDENSATE FRACTIONS DEPOSITED AT SUCCESSIVE ZONES ALONG THE PATH OF THE GASEOUS MIXTURE THROUGH SAID REGION AND CONTAINING METALLIC ALUMINUM AND RESPECTIVELY DECREASING PROPORTIONS OF SAID OTHER METAL BY MAINTAINING SAID ZONES IN THE REGION AT