Dissolved-Air Flotation of Metal Ions
- 1 October 1992
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 27 (13) , 1743-1758
- https://doi.org/10.1080/01496399208019444
Abstract
Metal ions (copper, nickel, zinc, and ferric ions) were separated from dilute aqueous solutions by dissolved-air flotation. The ions were either precipitated as sulfides or floated (as ions) by xanthates. Copper and nickel were selectively separated; promising results were obtained with single, binary, and ternary mixtures. The effect of several parameters (solution pH, addition of chemical reagents at varying concentrations, and the presence of other ions) on the removal of ions was studied. The collectorless flotation of copper ions was also investigated.Keywords
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