Cyclic voltammetry and potentiodynamic polarization studies of chalcopyrite concentrate in glycine medium
نویسندگان
چکیده
Cyclic voltammetry and potentiodynamic polarization analyses were utilized to investigate the mechanism kinetics of glycine leaching reactions for chalcopyrite. The effects pH (9–12), temperature (30–90 °C) concentration (0–2 mol/L) on corrosion current density, potential cyclic voltammograms investigated using chalcopyrite concentrate–carbon paste electrodes. Results showed that an increase in from 0 2 mol/L led increased oxidation peak density. Under same conditions, density was found change approximately 28 89 ?A/cm b whereas decreased –80 –130 mV. Elevated temperatures enhanced measured densities up 60 °C; however, above this level, observed decrease. A similar behavior determined with pH. 9 10.5 resulted higher than gave rise a reduced In addition, thermodynamic stability copper iron oxides at temperatures.
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ژورنال
عنوان ژورنال: Transactions of Nonferrous Metals Society of China
سال: 2021
ISSN: ['1003-6326', '2210-3384']
DOI: https://doi.org/10.1016/s1003-6326(21)65516-4