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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of applied electrochemistry 16 (1986), S. 544-554 
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The interactions between chalcocite and ethylxanthate have been examined in an electrochemical-microflotation cell containing a particle-bed working electrode. Cyclic voltammetry has shown the formation of a chemisorbed product commencing at −0.5 V versus SCE with a bulk oxidation product, possibly cuprous xanthate, forming above −0.23 V. Relating the charge passed on a potentiostated mineral bed after addition of xanthate to spectrophotometric changes in xanthate concentration suggested the presence of a fast chemical reaction and a charge transfer reaction. The strong correlation between flotation response and potential indicates that chemisorption of ethylxanthate produces a layer sufficiently hydrophobic for chalcocite flotation.
    Type of Medium: Electronic Resource
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