Development of a rapid measurement of current efficiency in the electrowinning of zinc

It has been demonstrated that the technique can also prove to be useful as a convenient method for the study of cathode morphology and for the nature of the potential/time transients during nucleation and growth of zinc deposits under various conditions. Thus, the effects of the concentrations of various impurities such as selenium, antimony and cobalt on the current efficiency and the morphology of the zinc deposits have been studied. The effects of the addition of additives such as glue and gelatine have similarly been evaluated. The results have been shown to be consistent with published data.