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http://dx.doi.org/10.7844/kirr.2016.25.4.49

Study on the Surface Morphology and Control of Impurity by Organic Additive for Tin electro-refining  

Park, Sung Cheol (Korea Institute of Industrial Technology)
Son, Seong Ho (Korea Institute of Industrial Technology)
Kim, Yong Hwan (Korea Institute of Industrial Technology)
Han, Chul Woong (Korea Institute of Industrial Technology)
Lee, Ki-Woong (Sungeel Hi-Tech Ltd.)
Publication Information
Resources Recycling / v.25, no.4, 2016 , pp. 49-53 More about this Journal
Abstract
The electro-refining process was performed to purify the casted tin crude metal from waste tin in methanesulfonic acid. The surface morphologies of electrodeposited tin on cathode were observed, the dendrite and delamination were inhibited by glycol group of organic additive. The impurity concentrations of tin crude metal and deposited metal were analyzed using ICP-OES. Quantitative analysis on casted tin crude metal showed that it consists of tin with 97.280 wt.% and several impurity metals of Ag, Cu, Pb, Ni, and etc. After tin electro-refining, the purity of tin increased up to 99.956 wt.%. Reduction current by cyclic voltammetry seems to be closely related to behavior of impurity in tin electro-refining.
Keywords
Tin recycling; Electro-refining; Organic additive; Cyclic voltammetry;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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