Difference in flotation behavior of galena by single and multi-step chronoamperometric oxidation

Orhan Ozdemir*, Marc A. Hampton, Tuan A.H. Nguyen, Anh V. Nguyen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The relationship between electrochemical oxidation (Chronoamperometry) of galena surfaces and collocterless galena flotation was investigated in detail. The chronoamperometry (CA) microflotation experiments and zeta potential experiments were performed with ground galena particles (106×53 μm). In addition, contact angle measurements were carried out with a freshly cleaved galena sample at pH 4 in order to investigate any changes in galena surface hydrophobicity after the surface oxidation electrochemically. The results from this study indicated that there is a strong link between the nano/micro-physico-chemical properties of a sulphide on galena surfaces and collectorless flotation of galena particles at pH 4. The results were also supported with the electrokinetics behavior and contact angle values of galena particles.

Original languageEnglish
Pages (from-to)812-821
Number of pages10
JournalPhysicochemical Problems of Mineral Processing
Volume55
Issue number3
DOIs
Publication statusPublished - 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019, Wroclaw University of Science and Technology.

Funding

This work was supported by ScientificReseachrProjectsCordinationUnitofIstabunlUniversity. Projectnumber57. 619

FundersFunder number
ScientificReseachrProjectsCordinationUnitofIstabunlUniversity

    Keywords

    • Chronoamperometry
    • Contact angle
    • Elemental sulfur
    • Galena
    • Hydrophobicity
    • Surface roughness

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