Abstract
In previous papers [1±4] a modi®ed anode-support system for the direct electrore®ning of cement copper obtained after the leaching of copper oxide minerals from small mines was reported. The optimum operating conditions were presented with regard to the dierent electrochemical and mechanical variables involved in the process [4]. In this paper a surface morphological study of the copper deposits obtained is presented. These deposits were obtained from copper sulphate solutions contaminated with dierent elements habitually present in the system during the cementation process used by the small and medium-size mine owners. The copper deposits were produced with an anode-support system consisting of an annular mesh and a vertical rotary cylinder cathode both made in AISI 316 stainless steel by maintaining constant the hydrodynamic and the rest of experimental conditions previously utilized [2].
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