Effect of particle size on the oxidation and flotation behavior of galena particles

• Autorzy: Lu Yalin , Tong Xiong , Xie Xian , Yang Bo , Hua Zhongbao

Identyfikatory

DOI

10.5277/ppmp18122

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to determine the effect of particle size on the oxidation and flotation behavior of galena particles. Coarse (-0.074+0.038 mm), intermediate (-0.038+0.025 mm) and fine (-0.025 mm) galena particles were used in this study. Dissolution tests demonstrated that the amount of oxidation products increased with the decrease of particle sizes. The surface oxidization of galena was the greatest at pH 7.3, followed by pH 12 and 9, which were consist with the result of XPS. The micro-flotation results indicated that the effect of pH on the flotation recovery of galena enhanced with the reduction of particle sizes. The decreasing of particle sizes increases both the sorption rate of collector and the dissolution of galena, while the generation of hydrophilic product caused by dissolution is dominant, rendering the mineral hydrophilic. This study shows the differences in the surface oxidation and flotation behavior of different size fractions of galena particles. To promote the flotation recovery of the fine size fraction of galena particles, alleviating their oxidation is the key.

Słowa kluczowe

EN

galena; particle size; surface oxidation; flotation behavior

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 1
• Strony: 208--216
• Opis fizyczny: Bibliogr. 32 poz., rys., tab.

Twórcy

autor

Lu Yalin

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, PR China

autor

Tong Xiong

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, PR China

autor

Xie Xian

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, PR China

autor

Yang Bo

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, PR China

autor

Hua Zhongbao

• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China
• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, PR China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).