Recovery of sludge from alumina production

The carbonation of the sludge slurry was studied. The main characteristics of the initial and carbonated red mud were compared. The carbonation of sludge ensures reduction of the toxicity of a sludge field and enables extraction of some rare metals (scandium, zirconium, titanium), aluminum, and sodi...

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Bibliographic Details
Published in:Russian journal of applied chemistry 2012-11, Vol.85 (11), p.1649-1653
Main Authors: Pyagai, I. N., Pasechnik, L. A., Yatsenko, A. S., Skachkov, V. M., Yatsenko, S. P.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Industrial Chemistry/Chemical Engineering
Inorganic Synthesis and Industrial Inorganic Chemistry
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Summary:The carbonation of the sludge slurry was studied. The main characteristics of the initial and carbonated red mud were compared. The carbonation of sludge ensures reduction of the toxicity of a sludge field and enables extraction of some rare metals (scandium, zirconium, titanium), aluminum, and sodium. The possibility of using the treated sludge as an additive in the manufacture of cement and concrete products was determined.
ISSN:1070-4272
1608-3296
DOI:10.1134/S107042721211002X