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Leaching of copper from waste PCBs with electro-generated chlorine -Analysis of experimental factors on the leaching by the factorial design-  

Kim, Eun-Young (Resources Recycling, University of Science & Technology)
Lee, Jae-Chun (Metal recovery group, Korea Institute of Geoscience & Mineral Resources)
Kim, Min-Seuk (Metal recovery group, Korea Institute of Geoscience & Mineral Resources)
Jung, Jin-Ki (Metal recovery group, Korea Institute of Geoscience & Mineral Resources)
Yoo, Kyoung-Keun (Metal recovery group, Korea Institute of Geoscience & Mineral Resources)
Publication Information
Resources Recycling / v.17, no.6, 2008 , pp. 24-33 More about this Journal
Abstract
The leaching of Cu from waste PCBs was investigated with electro-generated chlorine as an oxidant. The leaching experiments were carried out according to the design of experiments to analyze quantitatively the effect of parameters on copper leaching. From the analysis of variance (ANOVA) it was suggested that the effective parameters were current density, temperature, concentration of HCl, and the interaction between the concentration of HCl and temperature. Especially, the effect of current density was analyzed to contribute to the interpretation of result for copper leaching up to 95.7%. A multiple regression model obtained from the analysis of effective parameters explained 99% of leaching results. From the model equation, it was found that the effect of HCl concentration on copper leaching increased with temperature.
Keywords
copper; waste PCBs; factorial design method; leaching model equation; electro-generated $Cl_2$;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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