The hydrometallurgy of copper . ewill give the most uniform distribution of current and the most uniformstrength of electrolyte over the whole surface of the cathode, should bethe one to produce the highest efficiency, the best deposits of copper, andallow of the highest current density. Various methods are employed to accomplish these results. Onegenerally used, is to place the electrolyzers in cascade series, that is to 20 306 HYDROMETALLURGY OF COPPER say, in which there is a slight difference in level between one electrolyzerand the one next to it, so that the electrolyte pumped into a tan
The hydrometallurgy of copper . ewill give the most uniform distribution of current and the most uniformstrength of electrolyte over the whole surface of the cathode, should bethe one to produce the highest efficiency, the best deposits of copper, andallow of the highest current density. Various methods are employed to accomplish these results. Onegenerally used, is to place the electrolyzers in cascade series, that is to 20 306 HYDROMETALLURGY OF COPPER say, in which there is a slight difference in level between one electrolyzerand the one next to it, so that the electrolyte pumped into a tank abovethe highest electrolyzer is fed into it, and gradually flows through theentire series and finally issues from the lowest in the series and is againpumped back to the tank, or to the leaching vats. The rapidity of thecirculation is governed by the difference in level between any two tanksand the slant of the tank itself. If the tank has not sufficient slant, theelectrolyte will overflow if the circulation is at all
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