Concentration of a-terpineol and (2-dodecanoyloxyethyl)trimethylammonium bromide required for prevention of air bubble coalescence in aqueous solutions
 
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Department of Geoengineering, Mining and Geology, Wroclaw University of Technology
 
2
Wroclaw University of Technology, Department of Chemistry
 
3
UMCS
 
 
Publication date: 2006-01-01
 
 
Physicochem. Probl. Miner. Process. 2006;40(1):53-59
 
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ABSTRACT
Flotation is a widely used process in mineral processing. It utilizes different reagents including, collectors and frothers. It was proposed by Cho and Laskowski to use the so-called critical coalescence concentration (CCC) for characterization of flotation frothers. In this paper the CCC values were determined for α-terpineol, which is widely used as a frother in laboratory flotation tests, and for (2-dodecanoyloxyethyl)trimethylammonium bromide (DMM-11) which represents a broad family of reagents known as chemodegradable cationic surfactants. The CCC for α-terpineol was found to be 0.16 mmol/dm3 while for DMM-1, depending of the procedure of approximation, between 0.06 and 0.14 mmol/dm3.
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ISSN:1643-1049
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