Surface nanobubble characterization and its enhancement mechanisms for fine-particle flotation: A review

Fangyuan Ma; Patrick Zhang; Dongping Tao

doi:10.1007/s12613-022-2450-3

Volume 29 Issue 4

Apr. 2022

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2022 > 29(4): 727-738

Fangyuan Ma, Patrick Zhang, and Dongping Tao, Surface nanobubble characterization and its enhancement mechanisms for fine-particle flotation: A review, Int. J. Miner. Metall. Mater., 29(2022), No. 4, pp. 727-738. https://doi.org/10.1007/s12613-022-2450-3

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Fangyuan Ma, Patrick Zhang, and Dongping Tao, Surface nanobubble characterization and its enhancement mechanisms for fine-particle flotation: A review, Int. J. Miner. Metall. Mater., 29(2022), No. 4, pp. 727-738. https://doi.org/10.1007/s12613-022-2450-3

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Invited Review

Surface nanobubble characterization and its enhancement mechanisms for fine-particle flotation: A review

+ Author Affiliations

Corresponding author:
Dongping Tao E-mail: dptao@qq.com
Received: 24 November 2021; Revised: 12 February 2022; Accepted: 1 March 2022; Available online: 2 March 2022

Abstract

Abstract

Froth flotation is often used for fine-particle separation, but its process efficiency rapidly decreases with decreasing particle size. The efficient separation of ultrafine particles (UFPs) has been a major challenge in the mineral processing field for many years. In recent years, the use of surface nanobubbles in the flotation process has been recognized as an effective approach for enhancing the recovery of UFPs. Compared with traditional macrobubbles, nanobubbles possess unique surface and bulk characteristics, and their effects on the UFP flotation behavior have been a topic of intensive research. This review article is focused on the studies on various unique characteristics of nanobubbles and their mechanisms of enhancing the UFP flotation. The purpose of this article is to summarize the major achievements on the two topics and pinpoint future research needs for a better understanding of the fundamentals of surface nanobubble flotation and developing more feasible and efficient processes for fine and UFPs.
- surface nanobubbles;
- characterization;
- flotation;
- ultrafine particles;
- high-efficiency separation

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