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

• Autorzy: Ozdemir Orhan , Hampton Marc A , Nguyen Tuan , Nguyen Anh

Identyfikatory

DOI

10.5277/ppmp19025

• Języki publikacji: EN

Abstrakty

EN

The relationship between electrochemical oxidation (Chronoamperometry) of galena surfaces and collocterless galena flotation was investigated in detail. The chronoamperometry (CA) micro- flotation 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.

Słowa kluczowe

EN

surface roughness; hydrophobicity; contact angle; elemental sulfur; galena; chronoamperometry

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 3
• Strony: 812--821
• Opis fizyczny: Bibliogr. 48 poz., rys. kolor.

Twórcy

autor

Ozdemir Orhan

• Istanbul University-Cerrahpasa, Engineering Faculty, Mining Engineering Department, 34320, Avcilar, Istanbul, Turkey

autor

Hampton Marc A

• The University of Queensland

autor

Nguyen Tuan

• The University of Queensland

autor

Nguyen Anh

• The University of Queensland

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