Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium
Patent
1980-12-30
1982-03-16
Carter, Herbert T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iiia metal or beryllium
423111, 423128, 423556, C01F 774
Patent
active
043200982
ABSTRACT:
There is disclosed a method for the elimination of the chief impurities in aluminum dross tailings. The method can be used as a pretreatment in the manufacture of aluminum sulfate from aluminum dross tailings in a continuous flow reaction zone in which the dross tailings prior to reaction with sulfuric acid are pretreated to reduce the more objectionable contaminants contained therein to acceptable levels. The most objectionable contaminant in the dross tailings is aluminum metal which, in the invention, is oxidized with water or steam at elevated temperatures. The dross tailings, which are chiefly particles of aluminum oxide, are suspended in an aqueous slurry and the slurry is heated to a temperature from 185.degree.-225.degree. F. and maintained under liquification pressures and sufficient agitation to insure particle-to-particle attrition that removes an aluminum hydroxide coating which would otherwise inhibit the reaction.
REFERENCES:
patent: 1962498 (1934-06-01), Frost
patent: 3955969 (1976-05-01), Johnson
patent: 4160815 (1979-07-01), Huckabay
Huckabay Durward A.
Skiathas Arthur D.
Carter Herbert T.
Imperial West Chemical Company
LandOfFree
Aluminum sulfate manufacture from aluminum dross tailings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aluminum sulfate manufacture from aluminum dross tailings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminum sulfate manufacture from aluminum dross tailings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1641611