Model experiment on removal of nonmetallic inclusions by bubble flotation

Shin Ichi Shimasaki, Shunsuke Narita, Shoji Taniguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


A new experimental technique, which is based on a kinetic model for particle transport, has been proposed for determination of capture efficiency of particles by bubble flotation. A cold model experiment by using an aqueous solution and plastic particles is carried out to validate the new experimental technique. Plastic particles having poor wettability tend to adhere to bubbles and they are removed from an aqueous solution by bubble flotation. On the other hand, plastic particles good in wettability are not captured by bubbles. Capture efficiency can be estimated from a difference of transfer rate between the particles having poor and good wettability. Capture efficiency is found to be proportional to size ratio of particle and bubble, dp/db, and agrees with the theoretical results of Sutherland (1948) for a potential flow condition.

Original languageEnglish
Title of host publicationAluminium Alloys, ICAA 2014
EditorsKnut Marthinsen, Bjørn Holmedal, Yanjun Li
PublisherTrans Tech Publications Ltd
Number of pages6
ISBN (Print)9783038351207
Publication statusPublished - 2014
Externally publishedYes
Event14th International Conference on Aluminium Alloys, ICAA 2014 - Trondheim, Norway
Duration: 2014 Jun 152014 Jun 19

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


Other14th International Conference on Aluminium Alloys, ICAA 2014


  • Bubble Flotation
  • Capture Efficiency
  • Collision Probability
  • Inclusion Particle
  • Inclusion Removal

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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