- Title
- A pilot scale investigation into fine coal recovery from tailings using the Reflux Flotation Cell
- Creator
- Dickinson, J. E.; Galvin, K. P.
- Relation
- 7th International Flotation Conference (Flotation '15). Proceedings of the 7th International Flotation Conference (Flotation '15) (Cape Town, South Africa 16-19 November, 2015)
- Relation
- ARC.DP130100727
- Publisher
- Minerals Engineering International (MEI)
- Resource Type
- conference paper
- Date
- 2015
- Description
- Fine particle recovery from waste streams is an ongoing processing challenge facing industry. Without an economical method of recovering fine particles from low grade or low pulp density feeds, industry has had little alternative but to accept a loss in recovery and discard such feeds. Here, we present the first pilot plant investigation of a novel flotation device, the Reflux Flotation Cell, trialled using hydrocyclone overflow as the flotation feed at a coal handling and preparation plant located in the Hunter Valley, Australia. This system innovatively utilizes inclined channels to enhance bubble-liquid segregation, extending the hydrodynamic profile of flotation far beyond conventional flotation systems. The results demonstrated a robust performance for treating challenging feeds, obtaining product ashes and combustible recoveries overlapping the tree flotation curve. Through independent control of the overflow liquid flux, fluidization wash water flux and gas flux, a washing ratio can be specified to target the locus of the tree curve.
- Subject
- flotation; fine particles; tailings; Reflux Flotation Cell; fluidization wash water; coal
- Identifier
- http://hdl.handle.net/1959.13/1320801
- Identifier
- uon:24215
- Language
- eng
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