Separation of aluminium from beryllium in aqueous solutions by precipitate flotation

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Abstract
A fluoro‐complex of aluminium is selectively precipitated by sodium ion from a dilute aqueous solution aluminium, beryllium, fluoride and potassium ions at a pH near 3. Subsequent flotation of this precipitate with long‐chain alkylamines is affected by carbon chain length, pH, concentration of fluoride ion, rate of gas flow into the flotation cell and micellar form of the collector. Temperature has little effect on recovery.

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