A comparison of dry and wet grinding on gold-bearing sulphide ore flotation

• Autorzy: Oluklulu Semih , Bozkurt Volkan , Uçbaş Yaşar

Identyfikatory

DOI

10.37190/ppmp/195290

• Języki publikacji: EN

Abstrakty

EN

This study investigates the hypothesis that dry grinding prior to flotation can mitigate the adverse effects of galvanic interactions, improve the selectivity of gold flotation compared to wet grinding, and offer additional benefits due to water scarcity concerns and high water treatment costs. The effects of dry and wet grinding on the flotation behavior of gold-bearing sulphide ore were studied comparatively in terms of flotation test results and pulp chemistry parameters (pH, Eh, and dissolved oxygen). In addition, flotation tests without conditioning were also conducted following dry grinding in an attempt to minimize water contact further. Results demonstrated that dry grinding increased pulp potentials and dissolved oxygen levels, implying more oxidative conditions. Despite a lower mass pull with dry grinding, flotation recoveries and grades of gold and chalcopyrite were comparable to wet grinding, while dry grinding enhanced pyrite flotation at the rougher stage. Notably, flotation without conditioning effectively rejected pyrite and achieved higher grades for gold and chalcopyrite, indicating selective flotation. Therefore, dry grinding before flotation emerges as a viable alternative for gold and chalcopyrite flotation due to its improved selectivity while carefully optimizing flotation strategies and reagents to maximize recoveries.

Słowa kluczowe

EN

flotation; pulp chemistry; gold; conditioning; dry grinding

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2024
• Tom: Vol. 60, iss. 6
• Strony: art. no. 195290
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wykr.

Twórcy

autor

Oluklulu Semih

• Department of Mining Engineering, Faculty of Engineering and Architecture, Eskisehir Osmangazi University, 26040, Eskisehir, Turkey

autor

Bozkurt Volkan

• Department of Mining Engineering, Faculty of Engineering and Architecture, Eskisehir Osmangazi University, 26040, Eskisehir, Turkey

autor

Uçbaş Yaşar

• Department of Mining Engineering, Faculty of Engineering and Architecture, Eskisehir Osmangazi University, 26040, Eskisehir, Turkey

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).