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Stripping of Ferric Chloride by Mineral Acid Solution from the Loaded Alamine336 Phase  

Lee, Man-Seung (Department of Advanced Materials Science and Engineering, Mokpo National University)
Chae, Jong-Gwee (Department of Advanced Materials Science and Engineering, Mokpo National University)
Publication Information
Resources Recycling / v.17, no.5, 2008 , pp. 37-43 More about this Journal
Abstract
Stripping experiments of iron from the loaded Alamine336 by sulfurous, chloric and sulfuric acid solutions have been performed by varying the concentration of acid and stripping conditions. The stripping percentage of iron decreased with the increase of HCl and $H_{2}SO_4$ concentration, while that increased with the increase of $H_{2}SO_3$ concentration up to 3 M. Stripping temperature had adverse effect on the stripping percentage of iron in the stripping by $H_{2}SO_3$ solution, while the stripping percentage of iron by HCl solution increased with the increase of temperature. Stripping isotherm of iron by 0.1 M HCl and 0.1 M $H_{2}SO_4$ solution indicated that three and four stripping stages could result in a solution containing 0.05 M iron at an O/A ratio of 1/10 from the loaded Alamine336 phase where iron concentration was 0.5 M.
Keywords
$FeCl_3$; Alamine336; Stripping; Sulfurous acid; HCl; Stripping isotherm;
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