Please use this identifier to cite or link to this item: http://hdl.handle.net/11189/3318
Title: Kinetics of emulsification and rheological properties of highly concentrated explosive emulsions
Authors: Mudeme, S 
Masalova, I 
Haldenwang, Rainer 
Keywords: Highly concentrated emulsions;Refining;Capillary number;Viscosity ratio;Rheological properties
Issue Date: 2010
Publisher: Elsevier
Source: Mudeme, S. , Masalova, I. & Haldenwag R. (2010). Kinetics of emulsification and rheological properties of highly concentrated explosive emulsions. Chemical Engineering and Processing: Process Intensification, 49(5): 468–475
Abstract: Engineering properties of highly concentrated emulsions depend on their refining behaviour. The refining of highly concentrated “water-in-oil” emulsions used as “liquid explosives” during emulsification was studied. It was shown that droplet size distribution during the emulsification process becomes narrower, although remains of the Gauss type and the average droplet size decreases. Fitting equations for this process were proposed. The energy consumption was treated as the determining factor in the refinement process. A number of surfactant types and concentrations were examined and their refining behaviour was compared. Expectedly, the increase of the refining efficiency with the increase of the surfactant concentration was observed. Droplet refinement is accompanied by the evolution of rheological properties of emulsions that are visco-plastic materials. It was found that the droplet refinement occurs at high values of the Capillary Number lying above the stability curve.
URI: http://hdl.handle.net/11189/3318
http://dx.doi.org/10.1016/j.cep.2010.03.012
ISSN: 0255-2701
Rights: http://creativecommons.org/licenses/by-nc-sa/3.0/za/
Appears in Collections:Eng - Journal articles (DHET subsidised)

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