期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 192, 期 1-3, 页码 39-51出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0927-7757(01)00715-4
关键词
flotation; hydrophobic force; film stability
Whether or not a particle is captured by a rising bubble during flotation is determined, to a large degree, by the hydrophobic force of attraction. The origins of the latter force have remained obscure, despite the early insights of flotation scientists. Recent evidence indicates that the surface properties of the solid substrate, the type and concentration of dissolved gas, and surface microbubbles all influence the stability of the thin, aqueous film that forms between a particle and a gas bubble during the final stages of the capture process. The accurate description of the forces that operate across this film remains a serious challenge. (C) 2001 Elsevier Science B.V. All rights reserved.
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