Influence of dispersion conditions on phase separation in liquid multiphase systems
| Autor: | Lena Hohl, Maximilian Knossalla, Matthias Kraume |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Work (thermodynamics)
Aqueous solution Chemistry Applied Mathematics General Chemical Engineering System of measurement Analytical chemistry 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Separation process Physics::Fluid Dynamics Condensed Matter::Soft Condensed Matter Surface tension Rheology Chemical physics Microemulsion 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | Chemical Engineering Science. 171:76-87 |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2017.05.005 |
| Popis: | The phase separation of liquid/liquid systems consisting of oil, water and amphiphilic molecules is a function of temperature and composition. The phase separation is fastest in liquid three phase systems, where the organic and aqueous excess phases are separated by a microemulsion middle phase. In this work, a detailed analysis of the relevant physical properties (density, rheology, interfacial tension) of the phases in combination with drop size distribution measurements and image analysis of the droplet interactions is performed using an endoscope measurement system. This methodology enables to directly quantify influencing effects of droplet size and droplet interactions on dispersion and phase separation processes. The duration and character of the separation process strongly depends on the droplet interactions (e.g. formation of multiple emulsions) of the dispersed phases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect