The sulfuric acid leaching of Bayer electrofilter fines: A practical kinetical approach

Electrofilter fines, which are by-products of the Bayer process for the production of alumina from bauxite, were characterized to evaluate the alumina that was potentially extractable with sulfuric acid. Acid leaching is carried out at different concentrations of sulfuric acid, at different temperat...

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Bibliographic Details
Published in:	JOM (1989) Vol. 58; no. 8; pp. 58 - 62
Main Authors:	Sancho Martinez, J P, Ayala, Espina J, Coque, M P Garcia, Fernandez, Perez B, Costales, Alonso D
Format:	Journal Article
Language:	English
Published:	New York Springer Nature B.V 01-08-2006
Subjects:	Alumina Aluminum Aluminum sulfate Dust Filters Kinetics Leaching Studies Sulfuric acid Temperature Temperature effects United States > US
Online Access:	Get full text
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Summary:	Electrofilter fines, which are by-products of the Bayer process for the production of alumina from bauxite, were characterized to evaluate the alumina that was potentially extractable with sulfuric acid. Acid leaching is carried out at different concentrations of sulfuric acid, at different temperatures, pulp densities, and times, to dissolve gibbsite and transition aluminas. The result is an aluminum sulfate solution. This article reports on a study of the kinetics of the leaching reaction at 90DGC with two pulp densities: 10% and 30%.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1047-4838 1543-1851
DOI:	10.1007/s11837-006-0055-3