DefinePK

Abstract

Industrial production of copper solutions, in addition to the basic components (Cu, Ni), contain undesirable impurities which include arsenic and antimony. The work is devoted to studying the process of withdrawal of antimony from copper electrolyte with calcium carbonate, which is present in nature as a known mineral and in many cases is waste. Studies of the precipitation of antimony with calcium carbonate from copper-containing sulfuric acid solution was carried out by probabilistic and deterministic planning of the experiment. For the identification of solid precipitation X-ray analysis was used. The studies determined the optimum conditions fot precipitation of antimony from copper-containing highly acidic solution in which antimony precipitates the most: Ca:Sb ration - 2:1, the temperature to 25 °C, the content of sulfuric acid in the copper electrolyte – 100 g/l, the duration of process from 45 minutes to 60 minutes. The use of calcium carbonate to clean technology solutions allows you to bring the content of antimony to the optimum content.