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Minerals 2021, 11, 48. https://doi.org/10.3390/min11010048

Ahmad Hassanzadeh, Hamed Gholami

2021Englishmineral processingbeneficiationcomminutionflotationphysical separationultrasonic treatment

Abstract

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Numerous studies have addressed the role of ultrasonication on floatability of minerals macroscopically. However, the impact of acoustic waves on the mineral hydrophobicity and its physicochemical aspects were entirely overlooked in the literature. This paper mainly investigates the impact of ultrasonic power and its time on the wettability and floatability of chalcopyrite, pyrite and quartz. For this purpose, contact angle and collectorless microflotation tests were implemented on the ultrasonic-pretreated and non-treated chalcopyrite, pyrite and quartz minerals. The ultrasonic process was carried out by a probe-type ultrasound (Sonopuls, 20 kHz and 60 W) at various ultrasonication time (0.5–30 min) and power (0–180 W) while the dissolved oxygen (DO), liquid temperature, conductivity (CD) and pH were continuously monitored. Comparative assessment of wettabilities in the presence of a constant low-powered (60 W) acoustic pre-treatment uncovered that surface of all three minerals became relatively hydrophilic. Meanwhile, increasing sonication intensity enhanced their hydrophilicities to some extent except for quartz at the highest power-level.

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Cite This Work

@article{f9e9b415-aa92-47e1-a80c-d226fa922667,
  title={Minerals 2021, 11, 48. https://doi.org/10.3390/min11010048},
  author={Ahmad Hassanzadeh and Hamed Gholami},
  year={2021},
  language={English}
}
TY  - JOUR
TI  - Minerals 2021, 11, 48. https://doi.org/10.3390/min11010048
AU  - Ahmad Hassanzadeh
AU  - Hamed Gholami
PY  - 2021
LA  - English
ER  -

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