Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1991-09-09
1993-03-30
Lewis, Michael
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
23302R, 23302T, 23304, B01F 100, C22B 2100, C22B 2600, C01D 324
Patent
active
051982005
ABSTRACT:
A process for the recovery of metallic aluminum, mixtures of salts, and an aluminum oxide-metallic aluminum product from secondary aluminum dross. The process includes treating the dross with leach water to dissolve the salt content. Magnesium chloride is preferably added to the leach water to maintain the pH in the range of about 7-8.5, thereby reducing ammonia production in the treating step and enhancing recovery of metallic aluminum.
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Carkin, Jr. Gerald E.
Stewart, Jr. Donald L.
van Linden Jan H. L.
Yerushalmi Daniel
Aluminum Company of America
Bos Steven
Lewis Michael
Radack David V.
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