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http://dx.doi.org/10.7844/kirr.2017.26.6.58

Leaching of Black Dross by Hydrochloric Acid Solutions  

Nguyen, Thi Thuy Nhi (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Nguyen, Thi Hong (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Lee, Man Seung (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.26, no.6, 2017 , pp. 58-64 More about this Journal
Abstract
Leaching of black dross with HCl solution was conducted to find a suitable process to recover valauble materials. In this work, the leaching behavior of the components was compared between black dross and the residues after water treatment. All the components except $TiO_2$ in the black dross were dissolved by HCl solution in the experimental ranges. Treatment of the black dross with water to recover the salts has negative effect on the leaching of $Al_2O_3$, MgO and $SiO_2$. The reactions occuring during the leaching were discussed. At an optimum leaching condition of 3 M HCl and $90^{\circ}C$, the leaching percentage of $Al_2O_3$, MgO and $SiO_2$ was 85, 100 and 40%, respectively.
Keywords
Aluminum dross; leaching; HCl; treatment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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