Predictions of terminal rising velocity, shape and drag coefficient for particle-laden bubbles

Yan, Xiang-Ping; Zheng, Kaixin; Su, Weixu; Wang, Lijun; Zhang, Haijun; Cao, Yijun; Guo, Chuwen

doi:10.1016/j.mineng.2021.107188

Cited by 10 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its resolution and speed were set at 60 mm/pixels and 4000 frames per second, respectively. After that, the kerosene droplet profile was analyzed via the Pro‐Analyst software 23 . Every measurement was conducted three times to report the average data and errors.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of inevitable ions on kerosene droplet formation and evolution

Zhang,

Zhu,

et al. 2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

Understanding the effect of ions on collector generation characteristics is crucial for adjusting the oil/water interface and enhancing mineral flotation. We conducted a study of kerosene droplet generation process in the presences of NaCl, MgCl2 and AlCl3 using the high‐speed motion acquisition system. The results showed that the generation process of kerosene droplet could be divided into two stages that droplet expansion and column contraction according to the variation of the droplet width. With the increasing capillary inner diameter, the generation time of the kerosene droplet increased while the w/h value (column width/column height) of the kerosene column decreased. Until the w/h value decreased to 0, the droplet column ruptured and the droplet separated from the capillary. As the ion valence increased, the equivalent diameter (d) of the kerosene droplet increased due to the ionic hydration and followed the order dAl3+ > dMg2+ > dNa+. Furthermore, as the ion concentration increased, the equivalent diameter increased with the same capillary inner diameter, and the w/h value decreased. A model of the kerosene column height and capillary inner diameter (R) was established to predict the characteristics of the generating kerosene droplet.This article is protected by copyright. All rights reserved.

show abstract

Section: Methodsmentioning

confidence: 99%

“…After that, the kerosene droplet profile was analyzed via the Pro-Analyst software. 23 Every measurement was conducted three times to report the average data and errors.…”

Section: System and Measurementsmentioning

confidence: 99%

Effect of inevitable ions on kerosene droplet formation and evolution

Zhang,

Zhu,

et al. 2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

Effect of non‐ionic frothers on bubble characteristics in flotation: a review

Pan,

Gao,

Zhu

et al. 2024

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

The properties and synthesis of frothers have been the subject of scientific research for over a century owing to their extensive use in various industries. Given that the characteristics of bubbles are dependent on the nature of frother, such as in flotation slime, it is crucial to control the dosage of frother to achieve optimal effects. Excessive dosage leads to reagent waste whereas insufficient dosage results in resource waste, both hindering carbon emission reduction efforts. This paper provides a comprehensive review of existing literature regarding the impact of frothers on bubble behavior. The available literature demonstrates that the bubble size and velocity decrease as frother concentration increases. The underlying reasons for this phenomenon are discussed extensively. Furthermore, the relationship between bubble characteristics and hydrophile–lipophile balance (HLB) of frothers is examined. Finally, a correlation between bubble energy at critical coalescence concentration and HLB is established. These valuable insights for further investigation into frother properties. © 2024 Society of Chemical Industry (SCI).

show abstract