C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
39/107, 53/246
C22B 21/06 (2006.01)
Patent
CA 1188107
A B S T R A C T A method of removing dissolved contaminant alkali. metals and alkaline earth metals from molten aluminium by reaction of the contaminants with solid particulate materials comprising aluminium fluoride, wherein a body of the molten aluminium to be decontaminated is stirred, in the presence of the aluminium fluoride particles, in such manner as to generate and maintain a stable vortex in the molten body.
402577
Alcan International Limited
Fetherstonhaugh & Co.
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