Manuscript A0307 J Membr Sci.pdf (1 MB)
Preparation of monodisperse multiple emulsions at high production rates by multi-stage premix membrane emulsification
journal contribution
posted on 2012-10-03, 14:33 authored by Goran VladisavljevicGoran Vladisavljevic, Masataka Shimizu, Tadao NakashimaMultiple W/O/W emulsions have been prepared by multi-stage (repeated) premix
membrane emulsification using Shirasu-porous-glass (SPG) membrane with a mean
pore size of 10.7 μm. A coarse emulsion containing droplets with a mean particle size of
about 100 μm was homogenized 5-6 times through the same membrane at a constant
pressure difference of 20-300 kPa to achieve additional droplet homogenization and size
reduction. The optimum conditions with regard to particle size uniformity were 3
homogenization cycles at a pressure difference of 100 kPa, under which the mean size
of outer W/O particles was 9 μm and the span of particle size distribution was as low as
0.28. The optimum pressure difference in a single-stage process was higher, but the particle size distribution of prepared emulsions was broader than in a multi-stage
process at smaller pressures. The transmembrane flux was in the range of 1.8-37
m3/(m2h) and increased with increasing pressure difference and decreasing the content
of W/O particles. The mean size of W/O particles in each cycle was remarkably
constant over a wide range of their concentration of 1-60 vol. %.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Citation
VLADISAVLJEVIC, G.T., SHIMIZU, M. and NAKASHIMA, T., 2004. Preparation of monodisperse multiple emulsions at high production rates by multi-stage premix membrane emulsification. Journal of Membrane Science, 244 (1-2), pp. 97-106.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publication date
2004Notes
This is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.memsci.2004.07.008ISSN
0376-7388Publisher version
Language
- en