Abstract
In this paper, the theoretical energy consumption required in the zinc electrowinning process was analyzed. The theoretical energy consumption is only a half of the energy consumption in industrial production. To save energy of the production process, we studied five kinds of additives with the industrial electrolyte in the longtime zinc electrowinning process. The results indicated that the presence of non-ionic compound (thiourea) or anionic surfactant (sodium dodecyl sulfonate or sodium dodecylbenzene sulfonate) adversely affected the energy consumption and current efficiency. However, an improvement in energy consumption was observed with the addition of cetyltrimethylammonium bromide. Our results should be helpful for the production of zinc electrowinning.
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