Abstract
Xanthane interaction with pyrite in the presence of Pb and diethylenetriamine (DETA, NH 2CH 2CH 2NHCH 2NH 2) was investigated by cyclic voltammetry, open-circuit potential measurements, an ex-situ spectroelectrochemical technique, and zeta potential measurement. Uptake of xanthate was promoted by the presence of Pb. The only xanthate product detected was dixanthogen. Xanthate adsorption on Pb-contaminated pyrite was suppressed by DETA, but relatively large concentrations were required. Addition of DETA decreased the open-circuit potential and increased the zeta potential in the absence or presence of Pb ions, indicating adsorption of DETA. The mechanism of depression of DETA may be a combination of competition with xanthate for adsorption sites and creation of reducing conditions which retards oxidation of xanthate to dixanthogen.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
