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Effect of silica nanoparticles on the phase inversion of liquid-liquid dispersions

  • Separation Technology, Thermodynamics
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Abstract

The effect of silica nanoparticles on phase inversion of liquid-liquid dispersions in a stirred vessel was investigated. The studied systems were toluene dispersed in water and vice versa. In the first set of experiments, phase inversion behavior of systems without Silica nanoparticles was evaluated and subsequent experiments were conducted in the presence of the nanoparticles. For this purpose, Silica nanoparticles of different concentrations (0.01, 0.03, 0.05, 0.07 wt%) were dispersed in water. The nanofluid stability was examined using an ultraviolet-visible (UV-vis) spectrophotometer. The results indicated that increase in silica nanoparticle concentrations up to 0.07 wt% led to increase in agitation speed of phase inversion 43–53.5% and 38.5–45% in the case of O/W and W/O dispersions, respectively. Consequently, the tendency of dispersions to inversion diminished as nanoparticle concentrations increased. Finally, 0.05 wt% of silica nanoparticle was selected as the optimum on the range studied.

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Authors and Affiliations

  1. School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran

    Maliheh Raji Asadabadi, Hossein Abolghasemi & Payman Davoodi Nasab

  2. Faculty of Nuclear Engineering and Physics, Amir Kabir University, Tehran, Iran

    Mohammad Ghannadi Maragheh

Authors
  1. Maliheh Raji Asadabadi
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  2. Hossein Abolghasemi
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  3. Mohammad Ghannadi Maragheh
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  4. Payman Davoodi Nasab
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Correspondence to Hossein Abolghasemi.

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Asadabadi, M.R., Abolghasemi, H., Maragheh, M.G. et al. Effect of silica nanoparticles on the phase inversion of liquid-liquid dispersions. Korean J. Chem. Eng. 30, 733–738 (2013). https://doi.org/10.1007/s11814-012-0195-9

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  • DOI: https://doi.org/10.1007/s11814-012-0195-9

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