Foam fractionation
The foam fractionation is based on Lemlich et al. (1972) on a transport process in which surface-active substances or tensides are separated from the liquid phase with foam formation. This happens, for example, in flotation , when surface-active substances are dissolved in a liquid phase and bubbles are generated by introducing a gas phase. Depending on the type and amount of dissolved substances, these attach to the rising bubble flow and are carried to the surface of the water. There foam formation occurs, the intensity of which depends on the stability of the foam, the amount of gas volume introduced and the size of the bubble. This physical transport process is used, for example, in flotation processes to separate surface-active substances and particles from the liquid phase, and is one of the adsorptive bubble separation techniques.
Individual evidence
- ↑ Robert Lemlich: adsorptive bubble separation techniques, Academic Press, New York, 1972, ISBN 978-0-12-443350-2 , doi: 10.1016 / B978-0-12-443350-2.X5001-1 .
literature
- A. D. McNaught, A. Wilkinson: foam fractionation . In: IUPAC Compendium of Chemical Terminology (the “Gold Book”) . 2nd Edition. Blackwell Scientific Publications, Oxford 1997, ISBN 0-9678550-9-8 , doi : 10.1351 / goldbook.F02468 (English, corrected version (XML; 2006–) by M. Nic, J. Jirat, B. Kosata; with updates by A. Jenkins - Version: 2.3.3).