Application of Ultrasonic Atomization for Fractionating Particles in Suspensions

• Suzuki Kenji

  Department of Chemical Engineering, Nagoya University

• Hisaeda Junichi

  Department of Chemical Engineering, Nagoya University

• Nii Susumu

  Department of Chemical Engineering, Nagoya University

Abstract

A simple and effective method was proposed for the fractionation of particles in suspensions. When suspensions were allowed to atomize ultrasonically, particles only having diameters in a limited range were contained in liquid particles formed by the atomization. Liquid droplets containing solid particles were collected to recover very fine solid particles. Aqueous suspensions of silica or bentonite particles were irradiated with a 2.4 MHz ultrasound, and fractions of fine solid particles were collected by recovering the mist used for transferring the liquid droplets. In addition, the separation performance was examined with a synthesized suspension, which was composed of silica particles having diameters of 100, 300, and 1000 nm. The recovered silica particles had diameters less than 300 nm and the cut-off diameter decreased with the addition of a surfactant. The results show high potential for the ultrasonic fractionation of particles using atomization.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 45 (2), 114-118, 2012

  The Society of Chemical Engineers, Japan

Keywords

• Ultrasound
• Particle
• Separation
• Size Distribution
• Dispersion

Details

• CRID: 1390282679546882176
• NII Article ID: 130000967291
• NII Article ID: 10030159162
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.11we113
• ISSN: 18811299
• ISSN: 00219592
• NDL BIB ID: 023514136
• Web Site: http://id.ndl.go.jp/bib/023514136
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023514136
• Web Site: http://www.jstage.jst.go.jp/article/jcej/45/2/45_11we113/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed