COPPER RECOVERY FROM SPENT ETCHANT CUPRIC CHLORIDE SOLUTION BY ELECTROWINNING METHOD
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Abstract
Recovery of copper from actual spent etchant cupric chloride solution used in manufacturing of printed circuit board (PCB) containing 124 g/l Cu+2 ions concentration and 60 g/l hydrochloric acid was investigated in a batch mode jacketed tank. This tank was constructed with inner dimensions of 19×10×15 cm3 . Cylindrical rode-shape titanium was used as cathode, while two rectangular shaped graphite were used as anodes. The parameters studied were: current density (0.16-0.30 A/cm2 ), copper concentration in etchant solution (30-124 g/l) and the temperature (25-45o C). The highest current efficiency obtained was about 92% and the lowest power consumption achieved was about 2.7 W.h/g within the temperature range 25-35o C.
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References
• Calusaru, A., 1979, "Electrodeposition of metal powder", Elsevier Scientific Company, New York.
• Canning, W., 1970, "Canning handbook on electroplating", Birmingham, England.
• Mantell, C. L., 1960, "Electrochemical engineering", McGraw-Hill Book Company, New York.
• Parikh, G. D. and Wittard, W. C., 1974, US patent 3,784,455.
• Simonsom, D., 1984, J. Appl. Electrochemistry, 14, p. 595.
• Sioda, R. E. and Piotroska, H., 1980, Electrrochemical Acta, 25, p. 331.
• Tenterio, A. and Casolo-Ginelli, U., 1978, J. Appl. Electrochemistry, 8, p. 195.