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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1329-1338 
    ISSN: 1572-8838
    Keywords: anodic oxidation ; Ebonex® ; lead dioxide anode ; sulphur dioxide ; sulphuric acid recycling ; zirconium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrochemical behaviour of zirconium metal and Ebonex® cathodes during the electrolysis of sulphite ions in sulphuric acid, at temperatures from 20 to 90 ∘C, is reported. The inactivity of these materials for the reduction of sulphite ions to sulphur is demonstrated, making the undivided cell oxidation of sulphite ions to sulphuric acid, at concentrations greater than 3.0 mol dm−3, a viable process. The use of these two cathodes materials in conjunction with lead dioxide-coated and palladium oxide-coated anodes for sulphite ion oxidation is described. Linear sweep voltammograms, chronopotentiometry and batch electrolysis data are presented for sulphite ion oxidation and demonstrate the concept of an undivided electrolysis for the oxidation of sulphur dioxide in sulphuric acid.
    Type of Medium: Electronic Resource
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