Influence of Liquid Binder Dispersion on the Size of Spherical Agglomerates of Organic Compound
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2018-02
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Master Thesis
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Abstract
The effect of the liquid binder dispersity on the size of spherical agglomerates is explored. Small primary crystals, exhibiting a needle-like habit, were prepared in a reproducible manner. The spherical agglomerates were produced by feeding the liquid binder through a capillary in various ways that affected the liquid binder dispersity. The size of the resultant agglomerates were measured by conducting the image analysis of their microscopic pictures. The results of the agglomeration experiments were further supported by the size measurement of the liquid binder droplets. The binder droplets were generated in the in-house flow channel that reproduced the flow conditions at the tip of the feeding capillary in the stirred reactor. By utilizing a high-speed camera, the droplet formation was monitored and the size of the droplets were also characterized. We demonstrate the correlation between the size of the spherical agglomerates and the size of the binder droplets by combining the understanding of the underlying agglomeration process and the examination of the droplet formation process.
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Examiner : Orlewski, Pawel M.
Examiner : Mazzotti, Marco
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ETH Zurich
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03484 - Mazzotti, Marco (emeritus) / Mazzotti, Marco (emeritus)