Effect of frother addition mode on gas dispersion and coal flotation in a downflow flotation column

•A novel surfactant addition mode of flotation was proposed to reduce the surfactant waste.•Surfactant vapor mode presented higher aeration rate, higher bubble rising velocity and higher combustible matter recovery.•Relationship between aeration rate and bubble rising velocity of different addition...

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Veröffentlicht in:Fuel (Guildford) 2020-08, Vol.273, p.117715, Article 117715
Hauptverfasser: Zhu, Hongzheng, Zhu, Jinbo, López Valdivieso, Alejandro, Min, Fanfei, Song, Shaoxian, Wang, Hainan
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Sprache:eng
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