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http://dx.doi.org/10.7844/kirr.2017.26.6.84

Study on the Copper Electro-refining from Copper Containing Sludge  

Lee, Jin-Yeon (Korea Institute of Industrial Technology)
Son, Seong Ho (Korea Institute of Industrial Technology)
Park, Sung Cheol (Korea Institute of Industrial Technology)
Jung, Yeon Jae (Korea Institute of Industrial Technology)
Kim, Yong Hwan (Korea Institute of Industrial Technology)
Han, Chul Woong (Korea Institute of Industrial Technology)
Lee, Man-seung (Mokpo National University)
Lee, Ki-Woong (Sungeel Himetal Ltd.)
Publication Information
Resources Recycling / v.26, no.6, 2017 , pp. 84-90 More about this Journal
Abstract
The electro-refining process was performed to recovery high purity copper from low grade copper containing sludge in sulfuric acid. The surface morphologies and roughness of electro-refining copper were analyzed with variation of the type and concentration of organic additives, the best surface morphology was obtained 5 ppm of the gelatin type and 5 to 10 ppm of the thiol type organic additive. The crude metal consisted of copper with 86.635, 94.969 and 99.917 wt.%, several impurity metals of iron, nickel, cobalt and tin by pyro-metallurgical process. After electro-refining process, the purity of copper increases to 3N or 4N grade. The impurity concentrations and copper purities of copper crude metals, electrolyte and electro-refining copper were analyzed using ICP-OES, the electro-refining time and purity of copper crude metal to recover 4N grade copper were deduced.
Keywords
Copper; High purity Copper; Copper recycling; Electro-refining; Organic additive;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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