- Title
- Full-Scale trial of the REFLUX™ flotation cell
- Creator
- Iveson, S. M.; Sutherland, J. L.; Cole, M. J.; Borrow, D. J.; Zhou, J.; Galvin, K. P.
- Relation
- Minerals Engineering Vol. 179, Issue 30 March 2022, no. 107447
- Publisher Link
- http://dx.doi.org/10.1016/j.mineng.2022.107447
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2022
- Description
- A 2 m diameter REFLUX™ Flotation Cell was fed at roughly 210 m3/h, equivalent to a flux of 1.9 cm/s, about twice the maximum rate used in conventional flotation cells. The coal feed slurry had 59–64 wt% head ash and nominal size range −0.100 mm (Sauter mean size 0.004 mm). The air, wash water and underflow rates were 180 m3/h, 65 m3/h and 235 m3/h respectively, giving a positive downwards wash water bias flux of 0.2 cm/s. Product ashes of 11–15 wt% were obtained at combustible recoveries of 58–75 %, with results on or better than the tree curve. These initial results demonstrate that the beneficial hydrodynamics seen at laboratory scale are realised at full-scale. Also demonstrated is the use of a novel oil-agglomeration technique to obtain detailed performance versus size data, showing that high hydrophobic recoveries were being obtained at sizes down to 0.001 mm.
- Subject
- REFLUX™ Flotation Cell; full-scale; scale up; oil agglomeration
- Identifier
- http://hdl.handle.net/1959.13/1469397
- Identifier
- uon:48233
- Identifier
- ISSN:0892-6875
- Rights
- © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Language
- eng
- Full Text
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