High shear granulation of binary mixtures: Effect of powder composition on granule properties: Effect of powder composition on granule properties

Chirangano Mangwandi*, Liu JiangTao, Ahmad B. Albadarin, Ranjit M. Dhenge, Gavin M. Walker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
571 Downloads (Pure)

Abstract

The granular product being designed in this work required the use of two different powders namely limestone and teawaste; these materials have different bulk and particle densities. The overall aim of the project was to obtain a granular product in the size range of 2 to 4. mm. The two powders were granulated in different proportions using carboxymethylcellulose (CMC) as the binder. The effect of amount of binder added, relative composition of the powder, and type of teawaste on the product yield was studied. The results show that the optimum product yield was a function of both relative powder composition and the amount of binder used; increasing the composition of teawaste in the powder increased the amount of binder required for successful granulation. An increase in the mass fraction of teawaste in the powder mix must be accompanied by an increase in the amount of binder to maintain the desired product yield.

Original languageEnglish
Pages (from-to)424-434
Number of pages11
JournalPowder Technology
Volume270
Issue numberPart B
Early online date21 Jun 2014
DOIs
Publication statusPublished - Jan 2015

Keywords

  • Attrition
  • Binary mixture
  • Contact angle
  • Granule strength
  • High shear granulation
  • Wetting

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