Interactions between a Small Bubble and a Greater Solid Particle during the Flotation Process.

0511713 - ÚCHP 2020 RIV US eng J - Journal Article
Basařová, P. - Zawala, J. - Zedníková, Mária
Interactions between a Small Bubble and a Greater Solid Particle during the Flotation Process.
Mineral Processing and Extractive Metallurgy Review. Roč. 40, č. 6 (2019), s. 410-426. ISSN 0882-7508. E-ISSN 1547-7401
R&D Projects: GA ČR(CZ) GA19-09518S
Institutional support: RVO:67985858
Keywords : flotation * bubble-particle interaction * surfactants
OECD category: Chemical process engineering
Impact factor: 2.785, year: 2019
Method of publishing: Limited access

The interaction between bubbles and solid particles is an important mechanism in many industrial processes and flotation is a significant component of the most utilized applications. While flotation of mineral ores deals with fine particles and larger bubbles, the aim of this review is to focus on the opposite case, the interaction between smaller bubbles and larger particles encountered mostly in plastic flotation. Plastic flotation seems to be one of the appropriate methods for separating plastics, which is necessitated by increasing plastic consumption and the growing need to recycle. The first part of the article focuses on the problem of the collision of a bubble with a particle, both spherical and planar. The collision efficiency is discussed. The second part is devoted to the problem of liquid film rupture and the creation of the three-phase contact line. The third and final part focuses on the problem of the three-phase line expansion and the effect of surfactants on the resulting bubble stability.
Permanent Link: http://hdl.handle.net/11104/0301933