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Flocs Properties and Flotation Performance of Fine Diaspore with Energy Input Pretreatment Induced Using Sodium Oleate

School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China
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Minerals 2019, 9(7), 433; https://doi.org/10.3390/min9070433
Received: 18 June 2019 / Revised: 6 July 2019 / Accepted: 12 July 2019 / Published: 14 July 2019
PDF [1033 KB, uploaded 14 July 2019]

Abstract

Energy input, an important factor affecting flocs properties and flotation performance, has rarely been studied in the field of diaspore flotation, which has severely limited our understanding of the flocculation flotation of fine diaspore. Therefore, in this study, the flocs properties and flotation performance of fine diaspore with energy input pretreatment were studied through flotation kinetics, flocs size measurements, and fractal dimension analysis. The results showed that the flocs size increased and the flocs structure became looser with the increasing energy input, while the flocs size decreased and the structure became compact when the energy input exceeded 10.93 kJ/m3. Meanwhile, there were significant differences in the flotation performance under different energy input pretreatment conditions, suggesting that the flotation performance of the fine diaspore was closely related with the flocs properties generated during the agitation process. In particular, the flotation performance was positively correlated with the flocculation degree of flocs, to a certain extent. The flocculation flotation of the fine diaspore benefited from a suitable energy input, and an excessive energy input was not conducive to flotation performance.
Keywords: energy input pretreatment; flocs properties; flotation performance; fine diaspore energy input pretreatment; flocs properties; flotation performance; fine diaspore
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Liao, S.; Ou, L. Flocs Properties and Flotation Performance of Fine Diaspore with Energy Input Pretreatment Induced Using Sodium Oleate. Minerals 2019, 9, 433.

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