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Characterization of galena surfaces and potassium isoamyl xanthate (KIAX) synthesized adsorption

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Abstract

The effect of sulfite interaction with galena on the mechanism of potassium isoamyl xanthate (KIAX) synthesized adsorption onto galena surfaces has been studied in situ using electrochemical potential; FTIR spectra and SEM have been used to identify the mechanism of interaction between sulfite and galena surfaces. Activated galena with copper sulfate (10−4 M) has been investigated at pH 9.12 and potassium isoamyl xanthate (3 × 10−3 M) concentration. Oxidised galena surfaces have relatively low concentration of adsorbed xanthate and high potential (E opt = −89 mV); adsorbed colloidal (Pb-IAX, 1,123.08 cm−1) is found even at high xanthate concentration, colloidal lead oxide/hydroxide particles have been imaged after 10−4M lead sulfate addition at pH 9.12. The behavior of this system is consistent with ion exchange between xanthate and hydroxide followed by oxidation to dixanthogen (X 2, 1,273.56 cm−1) and diffusion of this species across the surface.

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Authors and Affiliations

  1. Laboratory of Chemical Molecular and Environment, Industrial Chemistry Department, Sciences and Technology Faculty, Mohamed Khider University, 07000, Biskra, Algeria

    Zohir Nedjar & Djamel Barkat

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  1. Zohir Nedjar
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  2. Djamel Barkat
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Correspondence to Zohir Nedjar.

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Nedjar, Z., Barkat, D. Characterization of galena surfaces and potassium isoamyl xanthate (KIAX) synthesized adsorption. J IRAN CHEM SOC 9, 709–714 (2012). https://doi.org/10.1007/s13738-012-0096-1

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  • DOI: https://doi.org/10.1007/s13738-012-0096-1

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