Exploration on the mechanism of oily-bubble flotation of long-flame coal

Exploration on the mechanism of oily-bubble flotation of long-flame coal •The isoelectric points of oily bubbles and coal particles were observed at about pH 3.5 and 2.3 respectively.•Over the range of pH 2–11, the attachment was verified by the induction time and oily-bubble flotation tests.•The combustible matter recovery in flotation was inversely related to the induction time.•The EDLVO theory was more appropriate than the DLVO theory to explain the attachment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Exploration on the mechanism of oily-bubble flotation of long-flame coal

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2017.10.126
Publisher site
See Article on Publisher Site

Abstract

•The isoelectric points of oily bubbles and coal particles were observed at about pH 3.5 and 2.3 respectively.•Over the range of pH 2–11, the attachment was verified by the induction time and oily-bubble flotation tests.•The combustible matter recovery in flotation was inversely related to the induction time.•The EDLVO theory was more appropriate than the DLVO theory to explain the attachment.

Journal

FuelElsevier

Published: Mar 15, 2018

References

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