Flotation Kinetics of Pyrite Under High-frequency Ultrasonic Treatment

YAN Wenchao; HU Falin; CAO Qinbo

doi:10.13779/j.cnki.issn1001-0076.2021.05.012

2021 Vol. 41, No. 5

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YAN Wenchao, HU Falin, CAO Qinbo. Flotation Kinetics of Pyrite Under High-frequency Ultrasonic Treatment[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 83-88. doi: 10.13779/j.cnki.issn1001-0076.2021.05.012

Citation:

YAN Wenchao, HU Falin, CAO Qinbo. Flotation Kinetics of Pyrite Under High-frequency Ultrasonic Treatment[J]. Conservation and Utilization of Mineral Resources, 2021, 41(5): 83-88. doi: 10.13779/j.cnki.issn1001-0076.2021.05.012

Flotation Kinetics of Pyrite Under High-frequency Ultrasonic Treatment

Faculty of land resources engineering, Kunming university of science and technology, Kunming 650093, Yunnan

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Corresponding author: CAO Qinbo, yanwenchao002X@163.com

Received Date: 10 October 2021

Publish Date: 25 October 2021

Abstract

Abstract

This paper studies the flotation behavior of pyrite under the action of ultrasound.The results show that under the best conditions of flotation with a grinding fineness of-0.074 mm accounting for 57%, 200 g/t butyl xanthate, and 20 g/t foaming agent, the ultrasonic frequency is 135 kHz and the power is 100 W can increase the recovery rate of pyrite by 13.86%. The results of ultrasonic flotation and standard flotation showed that the high frequency ultrasonic treatment had the greatest influence on the flotation of pyrite of -150 μm+100 μm size fraction, and the recovery was improved by 7.54%. Five kinetic models are used to fit the experimental data of this particle size. The results show that the classical first-order flotation kinetic model gave excellent fits to the experimental data, and the description of kinetic equation is ultrasonic treatment flotation: ε=26.27[1-exp(-0.601 t)], standard flotation: ε=18.01[1-exp(-0.671 t)], respectively SEM analysis showed that the recovery of pyrite was improved mainly by the cleaning of surface.
- ultrasonic treatment /
- pyrite /
- flotation kinetics /
- surface cleaning

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References

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