Abstract
The electrodeposition of copper from acidified aqueous copper sulfate solution in cells equipped with fluidized cathodes has been studied. Cells used were of a cylindrical geometry and a rectangular geometry, 150 amp and 1,000 amp nominal current, respectively. In the smaller cell, current efficiency, energy consumption, and freedom from operating problems were measured as a function of particle size, anolyte flow, temperature, acid concentration, anode geometry, and diaphragm material. Runs in the larger cell demonstrated the technical feasibility of copper electrowinning on this scale, but power consumptions were high, due to excessive voltage drops in the anode side of the cell. A mathematical model was developed and shown to be capable of a semiquantitative prediction of the important aspects of cell behavior.
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