동 전해정련시 황산구리 수용액 중의 Arsenic이 구리의 전해전착에 미치는 영향
The Effect of Arsenic on Copper Electrodeposition in Copper-Sulfate Solutions in Copper-Electrorefining
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The effect of Arsenic in copper-sulfate solutions during electrorefining of copper was investigated using scanning electron microscopy, X-ray diffraction and cyclic voltammetry analysis. Electrodeposition was carried out using Arsenic, Antimony and bismuth addition to sulfate electrolytes: 45 g/l Cu2+ and 170 g/l H2SO4. Arsenic in sulfate electrolytes changed the morphology and structure of the copper deposits as compared with those obtained from impurity free solutions. When arsenic was present in the sulfate electrolytes, Cu3As intermetallic phase was formed locally on the deposits.
Abstract
The effect of Arsenic in copper-sulfate solutions during electrorefining of copper was investigated using scanning electron microscopy, X-ray diffraction and cyclic voltammetry analysis. Electrodeposition was carried out using Arsenic, Antimony and bismuth addition to sulfate electrolytes: 45 g/l Cu2+ and 170 g/l H2SO4. Arsenic in sulfate electrolytes changed the morphology and structure of the copper deposits as compared with those obtained from impurity free solutions. When arsenic was present in the sulfate electrolytes, Cu3As intermetallic phase was formed locally on the deposits.
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