2014•China Nonferrous MetallurgyRequires access
Practice of reducing contents of silver in cathode copper in Yunnan Copper Industry Co.,Ltd.
Ma Ju
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Abstract
The high content of silver in cathode copper affects the performance of high-purity cathode copper,and leads to economic loss of copper electrolysis enterprise.The behaviors of silver in copper electrolysis process and the ways to enter into cathode copper were analyzed,various reaction of silver that maybe occurred in the copper electrolysis process were determined,the two ways of silver to enter into the cathode copper including electrochemical deposition and mechanical adhesion were proposed,the key factors that influence the content of silver in cathode copper were introduced.According to the production practice,some effective measures to reduce the content of silver in cathode copper were adopted,and the content of silver maintained about 10 x 10'.