Comments on 'Frother-related research at McGill University' by Finch, Gelinas and Moyo (letter)

Title: Comments on 'Frother-related research at McGill University' by Finch, Gelinas and Moyo (letter)
Creator: Stevenson, Paul; Evans, Geoffrey M.
Relation: Minerals Engineering Vol. 21, Issue 3, p. 241-242
Publisher Link: http://dx.doi.org/10.1016/j.mineng.2007.08.015
Publisher: Elsevier
Resource Type: journal article
Date: 2008
Description: In a recent paper, Finch et al. (2006) refer to a layer of ‘bound water’ that is carried with a surfactant-stabilised bubble as it rises in a swarm or a froth. The remaining ‘bulk water’ is not carried up the column. Using IR spectroscopy, Finch et al. report the layer of ‘bound water’ to be of thickness 1100 nm for the surfactant F150, 600 nm for DF250, and less than 160 nm for n-pentanol and MIBC. We do not find this situation likely. It seems likely that the results are, in fact, an experimental artefact rather than evidence for a layer of ‘bound water’. An alternative hypothesis for the mechanism of liquid flux in a rising column of froth has been presented by Stevenson (2007).
Subject: rising foam; dispersion; liquid; bound water
Identifier: http://hdl.handle.net/1959.13/41472
Identifier: uon:4816
Identifier: ISSN:0892-6875
Language: eng

		Thumbnail	File	Description	Size	Format