Removal of alkali metals and alkaline earth metals from molten a

Details Removal of alkali metals and alkaline earth metals from molten a Removal of alkali metals and alkaline earth metals from molten a

1983-01-06

1984-09-11

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 93AC, 266235, C22B 2106

Patent

active

044708467

ABSTRACT:
A method of removing dissolved contaminant alkali metals and alkaline earth metals from molten aluminum by reaction of the contaminants with solid particulate aluminum-fluoride-yielding material, wherein a body of the molten aluminum to be decontaminated is stirred, in the presence of the aluminum fluoride particles, in such manner as to generate and maintain a stable vortex in the molten body.

REFERENCES:
patent: 3436212 (1969-04-01), Hess
patent: 3620716 (1971-11-01), Hess
patent: 4322245 (1982-03-01), Claxton

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