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Frother/collector interactions in thin froth films and flotation
YKI – Ytkemiska institutet.
1993 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 70, 289-295 p.Article in journal (Refereed)
Abstract [en]

Thin aqueous equilibrium film studies and surface tension measurements on a mixed surfactant system consisting of polyethylene oxide (a model frother) and potassium ethyl xanthate (a model collector) enable the interaction between the two surfactants at the air/solution interface to be elucidated. For the film containing the non-ionic frother, the interface was charged and addition of low concentrations of xanthate acted as a common electrolyte and reduced the thickness of the film inducing rupture. However, at high xanthate collector concentrations, the negative charge xanthate was found to interact with the non-ionic and caused a buildup of negative charge at the air/solution. Higher frother concentrations were necessary to produce non-rupturing thin films upon increasing the xanthate concentration.

Place, publisher, year, edition, pages
1993. Vol. 70, 289-295 p.
Keyword [en]
Flotation, poly(ethylene oxide), potassium ethyl xanthate, thin froth films
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26474OAI: oai:DiVA.org:ri-26474DiVA: diva2:1053476
Note
A753Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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