In-situ, simultaneous milling and coating of particulates with nanoparticles

Qi Zhang, Jun Yang, Shuli Teng, Rajesh N. Dave, Linjie Zhu, Peng Wang, Ming Wan Young, Costas G. Gogos

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Fluid energy mill (FEM) was utilized to simultaneously realize several functions, namely: size reduction of coarse micron-sized pre-coated particles into smaller (ca. 1-10 μm) particles, as well as de-agglomeration and coating of nanoparticles onto the ground particles, all within the FEM chamber. Three types of coating nanoparticles - silica, alumina, and titania - were applied to study the effects of the nanoparticle type on the coating performance. It was found that material type and surface modification play a significant role in coating uniformity. The results show that the flowability of the ground KCl particulates can be improved significantly by the addition of nanoparticles. The flowability of the ground particulates is sensitive to the amount of the nanoparticles added. This study demonstrates that the novel process can be used to fluidize and coat highly cohesive particles.

Original languageEnglish (US)
Pages (from-to)292-297
Number of pages6
JournalPowder Technology
Volume196
Issue number3
DOIs
StatePublished - Dec 22 2009

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

Keywords

  • Flowability
  • Fluid energy mill
  • Nanoparticle
  • Particulate coating

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