Document Detail


Titanium leaching from red mud by diluted sulfuric acid at atmospheric pressure.
MedLine Citation:
PMID:  18295399     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Laboratory-scale research has focused on the recovery of titanium from red mud, which is obtained from bauxite during the Bayer process for alumina production. The leaching process is based on the extraction of this element with diluted sulfuric acid from red mud under atmospheric conditions and without using any preliminary treatment. Statistical design and analysis of experiments were used, in order to determine the main effects and interactions of the leaching process factors, which were: acid normality, temperature and solid to liquid ratio. The titanium recovery efficiency on the basis of red mud weight reached 64.5%. The characterization of the initial red mud, as well as this of the leached residues was carried out by X-ray diffraction, TG-DTA and scanning electron microscopy.
Authors:
S Agatzini-Leonardou; P Oustadakis; P E Tsakiridis; Ch Markopoulos
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Publication Detail:
Type:  Journal Article     Date:  2008-01-20
Journal Detail:
Title:  Journal of hazardous materials     Volume:  157     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-07-14     Completed Date:  2009-01-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  579-86     Citation Subset:  IM    
Affiliation:
Department of Mining and Metallurgical Engineering, Laboratory of Metallurgy, National Technical University of Athens, Zografou, Athens, Greece.
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MeSH Terms
Descriptor/Qualifier:
Aluminum Oxide / chemistry*
Atmospheric Pressure
Microscopy, Electron, Scanning
Sulfuric Acids / chemistry
Titanium / chemistry*
X-Ray Diffraction
Chemical
Reg. No./Substance:
0/Sulfuric Acids; 1344-28-1/Aluminum Oxide; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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