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Title: Preparation of emulsions with a narrow particle size distribution using microporous α-alumina membranes
Authors: Vladisavljevic, Goran T.
Schubert, Helmar
Keywords: Membrane emulsification
α‐alumina membrane
SPG membrane
Issue Date: 2003
Publisher: © Taylor and Francis
Citation: VLADISAVLJEVIC, G.T. and SCHUBERT, H., 2003. Preparation of emulsions with a narrow particle size distribution using microporous α-alumina membranes. Journal of Dispersion Science and Technology, 24 (6), pp. 811 - 819
Abstract: O/W emulsions with the smallest spans of particle size distribution (PSD) [span = (d 90 − d 10)/d 50] reported until now for ceramic α‐alumina membranes (0.42–0.56) were prepared using a 1.4‐µm membrane cleaned thoroughly after use in an ultrasonic bath. The smallest span values of 0.42–0.48 were achieved at transmembrane pressures 2.6–3.5 times greater than the capillary pressure. A narrow particle size distribution with a span of 0.48–0.49 was obtained at a wall shear stress of 0.55 Pa, provided that the dispersed phase flux was not above 4.6 L m2 h−1. The span and mean droplet size were remarkably constant over the 1–10 vol.% range of dispersed phase content. Membrane cleaning by ultrasonication was one of the critical conditions for successful operation. If the membrane was cleaned only by the cleaning in place (CIP) method, emulsions with a span value in the range of 0.7–1.4 were obtained.
Description: This article was published in the Journal of Membrane Science [© Elsevier] and the definitive version is available at: http://dx.doi.org/10.1081/DIS-120025549
Version: Accepted for publication
DOI: 10.1081/DIS-120025549
URI: https://dspace.lboro.ac.uk/2134/10581
Publisher Link: http://www.tandfonline.com/doi/abs/10.1081/DIS-120025549
ISSN: 0193-2691
Appears in Collections:Published Articles (Chemical Engineering)

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