Variation of granule mass fraction with coordination number in wet granulation process--颗粒学报PARTICUOLOGY

Roy, P., Vashishtha, M., Khanna, R., & Subbarao, D. (2009). Variation of granule mass fraction with coordination number in wet granulation process. Particuology, 7(5), 408–413. https://doi.org/10.1016/j.partic.2009.07.001

Variation of granule mass fraction with coordination number in wet granulation process

Papiya Roy^*, Manish Vashishtha, Rajesh Khanna, Duvvuri Subbarao

Department of Chemical Engineering, Indian Institute of Technology, Delhi, New Delhi, India

10.1016/j.partic.2009.07.001

Volume 7, Issue 5, October 2009, Pages 408-413

Received 7 September 2008, Accepted 15 July 2009, Available online 21 August 2009.

E-mail: papiya.roy@gmail.com

Highlights

Abstract

In granulation, fine particles combine to form a coarse granule in the form of a particle matrix partially or fully saturated with a binder liquid. The final product of granulation possesses a wide variety of granule size distributions with surface mean diameters which differ with operating conditions. The final granule size depends on the operating conditions, e.g. operating gas velocity, inlet air temperature, initial feed particle size, and viscosity of the binder. The objective of this paper is to find out the uniformity in the relation between the granule mass fraction in the final granule size distribution and the number of feed particles present in the granules. The total number of granules obtained depends on the experimental conditions but the granule mass fraction and the number of feed particles forming a single granule are independent of operating variables, feed material and method of granulation. The paper purports further to compare the uniform nature of mass fraction of the granules in final granule size distribution and the primary particles required to form that particular granule size irrespective of experimental conditions of granulation.

Graphical abstract

Keywords

Granules; Primary particle; Coordination number

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