Electrical Aspects of Adsorbing Colloid Flotation. XXI. Flotation with Dodecylphosphate/n-Hexanol Mixtures
- 1 December 1987
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 22 (12) , 2281-2293
- https://doi.org/10.1080/01496398708057187
Abstract
The adsorbing colloid flotation of Pb(II), Cd(II), and Cu(II) with ferric hydroxide floc and the mixed surfactant system sodium dodecylphosphate (SDP)/n-hexanol was investigated. Good removals of Pb and Cu were obtained; removal of Cd was less satisfactory. The effects of interfering anions (sulfate, oxalate, silicate, phosphate) were studied; higher concentrations of these ions could be tolerated with SDP/n-hexanol than with sodium dodecylsulfate. Measurements of the cmc of SDP were made; low solubility prevented determinations in the pH range 4–8.5.Keywords
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