You are not logged in.

Producing hollow granules from hydrophobic powders in high-shear mixer granulators

Eshtiaghi, Nicky, Arhatari, Benedicta and Hapgood, Karen P. 2009, Producing hollow granules from hydrophobic powders in high-shear mixer granulators, Advanced powder technology, vol. 20, no. 6, pp. 558-566, doi: 10.1016/j.apt.2009.08.006.

Attached Files
Name Description MIMEType Size Downloads

Title Producing hollow granules from hydrophobic powders in high-shear mixer granulators
Author(s) Eshtiaghi, Nicky
Arhatari, Benedicta
Hapgood, Karen P.
Journal name Advanced powder technology
Volume number 20
Issue number 6
Start page 558
End page 566
Total pages 9
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2009-11
ISSN 0921-8831
1568-5527
Keyword(s) hollow granule
liquid marbles
dry water
hydrophobic
granulation
agglomeration
XRT
Summary The formation of hollow granules from hydrophobic powders in a high-shear mixer granulator has been investigated by changing the binder/powder mass ratio and studying its effects on granule size and structure. In this study, a mixer granulator was filled with 100 g of hydrophobic fumed silica and then varying quantities of 5% Hydroxy Propyl Cellulose solution was slowly sprayed into granulator. A range of liquid to solid mass ratios between from 0.5:1 to 15:1 was used. Granules were then dried at 60 °C in a fan forced oven. This paper compares the particle size distributions, scanning electron microscopy (SEM) images and X-ray tomography (XRT) images of hollow granules as a function of the liquid to solid mass ratio. The granule mean size increased and the fraction of un-granulated (fine) particles decreased as the liquid to solid mass ratio increased. Simultaneously, the morphology and structure of the hollow granules changed from a spherical to a deformed structure which indicates the importance of choosing the optimal liquid to solid mass ratio. The optimal liquid to solid mass ratio for Aerosil R202 powder in this study was found to be between 3:1 and 6:1. The final granule shape and size distribution are dependent on the liquid to solid ratio if the liquid marble nucleation process starts with a preformed droplet template.
Notes The article states that it is jointly published by Elsevier & The Society of Powder Technology Japan.
Language eng
DOI 10.1016/j.apt.2009.08.006
Field of Research 0904 Chemical Engineering
0913 Mechanical Engineering
Socio Economic Objective 0 Not Applicable
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, The Society of Powder Technology Japan
Persistent URL http://hdl.handle.net/10536/DRO/DU:30093686

Document type: Journal Article
Collection: School of Engineering
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in TR Web of Science
Scopus Citation Count Cited 12 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 11 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Thu, 06 Apr 2017, 15:33:16 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.