Effect of particle size on flotation performance of hematite

• Autorzy: Luo Ximei , Song Shuixiang , Ma Mingze , Wang Yunfan , Zhou Yongfeng , Zhang Ying

Identyfikatory

DOI

10.5277/ppmp18156

• Języki publikacji: EN

Abstrakty

EN

The effect of particle size on flotation performance of hematite and quartz was investigated. Microflotation, X-ray photoelectron spectroscopy analysis, reagent adsorption measurements, and collision and attachment probability calculation between particle and bubble were conducted in this investigation. The results showed that the floatability of minerals with different particle size fractions was different, which was mainly related to surface bonding site, reagent adsorption, collision probability and entrainment. The quartz with different particle size had little impact on hematite recovery, but -45 μm fraction negatively affected Fe grade of concentrate both in the direct and reverse flotation of hematite. In the direct flotation, the Fe grade in froth product dropped off due to the fine quartz entrainment. While in the reverse flotation, the Fe grade in sink product dropped off as a result of difficulty in floating fine quartz particles, which was due to lower collision probability. Meanwhile, in the reverse flotation, the presence of hematite fines (-18 μm fraction) also had negative impact on hematite recovery because of fine particle entrainment.

Słowa kluczowe

EN

particle size; hematite; entrainment; surface bonding site; reagent adsorption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 2
• Strony: 479--493
• Opis fizyczny: Bibliogr. 41 poz., rys., tab.

Twórcy

autor

Luo Ximei

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

autor

Song Shuixiang

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

autor

Ma Mingze

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

autor

Wang Yunfan

• Faculty of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China

autor

Zhou Yongfeng

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

autor

Zhang Ying

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

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Uwagi

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