Express Voltammetric Control of Permanganate Ions in Process Solutions from Zinc Production

Express voltammetric analysis of zinc sulfate solutions for manganese(VII) ions was developed. The influence of the components of the supporting electrolyte on the measurement sensitivity and selectivity was studied. The method is intended for automated control of the permanganate treatment of the zinc electrolyte to remove cobalt(II) ions.     

Voltammetric Determination of Cobalt(II) in Zinc Sulfate Solution

A method for automated polarographic analysis for Co(II) ions in technological solutions of zinc production was developed. The influence exerted by the components of a supporting electrolyte on the sensitivity and selectivity of measurements was studied. The method is intended for determining the content of cobalt(II) in purification of a zinc sulfate solution to remove impurities and for ecological monitoring of wastewater produced at nonferrous metallurgy plants.