Surface Chemistry of Froth Flotation 1982
DOI: 10.1007/978-1-4615-7975-5_5
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Flotation Surfactants

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Cited by 41 publications
(65 citation statements)
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“…It is well known that a small object can float on a liquid medium that has a lower density. This phenomenon is critical to a number of both naturally occurring and man-made processes, from water-walking and meniscus-climbing of insects and spiders 1 2 3 to separating gold, diamond and many other valuable minerals from rocks by froth flotation using air bubbles 4 5 . For solid objects, numerous studies have verified the modified Archimedes principle that includes the role of the surface tension of the liquid.…”
mentioning
confidence: 99%
“…It is well known that a small object can float on a liquid medium that has a lower density. This phenomenon is critical to a number of both naturally occurring and man-made processes, from water-walking and meniscus-climbing of insects and spiders 1 2 3 to separating gold, diamond and many other valuable minerals from rocks by froth flotation using air bubbles 4 5 . For solid objects, numerous studies have verified the modified Archimedes principle that includes the role of the surface tension of the liquid.…”
mentioning
confidence: 99%
“…Saponified vegetable oils are surfactants widely used in flotation as a collector. They are composed of mixtures of carboxylic acids (RCOOH) of long hydrocarbon chain, which presents a hydrophobic character, and the carboxyl polar group, which is hydrophilic (Leja, 1982;Pearse, 2005). Soaps or salts of these oils, obtained by saponification, are used in the anionic flotation of slightly soluble and oxide minerals (Kulkarni and Somasundaran, 1980;Guimarães et al, 2005).…”
Section: Methodsmentioning
confidence: 99%
“…Soaps or salts of these oils, obtained by saponification, are used in the anionic flotation of slightly soluble and oxide minerals (Kulkarni and Somasundaran, 1980;Guimarães et al, 2005). Starches of different origins are used as depressants in several flotation systems (Leja, 1982;Hanna and Somasundaran, 1976). Nunes and Peres (2011) point them out as being excellent carbonate depressants.…”
Section: Methodsmentioning
confidence: 99%
“…It is worth pointing out that the modified starch I and II are produced with the introduction of positive charges in its molecules by means of a cationizing reaction with the use of reagents containing imine, amine, ammonium and sulphonium groups, being the degree of substitution the parameter that tells them apart (Bertolini, 2010). On the other hand, dextrin is obtained by means of a treatment which breaks and reverses the molecular chain of the starches by enzymatic or thermal degradation under acid conditions (Leja, 1982). According to the manufacturers, the amylopectin content in the cassava and corn starch are 83 and 74%, respectively.…”
Section: -Characterization Of the Samplementioning
confidence: 99%