Dry dispersion of fine particles

Hiroaki Masuda, Kuniaki Gotoh

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Dry dispersion of fine particles by a mixer-type disperser has been studied experimentally and theoretically with particular attention paid to the size distribution of discharged aerosol particles and the discharged air flow rate. A stable operation range for the disperser has been searched for. Through experiments at various impeller rotational speeds and powder feed rates, a semi-empirical equation showing the effectiveness of the disperser was obtained. Dispersers of different sizes revealed the effects of size on the discharged air flow rate and the stable operation range. The discharged air flow rate is directly proportional to the impeller rotational speed for all sizes tested and is well correlated by a semi-empirical equation. The stable operation range was also represented by an equation as a function of the disperser dimensions.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume109
DOIs
Publication statusPublished - Apr 20 1996
Externally publishedYes

Keywords

  • aerosol
  • agglomerated particles
  • dispersability
  • dry dispersion
  • fine particles

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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