Influence of electrolysis parameters on the silver content of cathodic copper

The effect of the following electrolysis parameters on the silver content i n cathodic copper was investigated: temperature ranging from 30 to 60 degre es C; rate of electrolyte circulation ranging from 3 to 9 1/h; anode compos ition-silver content ranging from ca. 0.3 to ca. 1.0 wt.8; and oxygen conte nt ranging from ca. 80 to ca. 1200 ppm. The silver content in the cathodic copper depends on temperature and its highest value has been reached at 60 degrees C, It depends also on the composition of anodes-on both silver and oxygen contents. However, it does not depend on the rate of the electrolyte circulation within the investigated range of this parameter. (C) 2000 Else vier Science B.V. All rights reserved.