Model experiment on removal of nonmetallic inclusions by bubble flotation

Shin Ichi Shimasaki; Shunsuke Narita; Shoji Taniguchi

doi:10.4028/www.scientific.net/MSF.794-796.1089

Model experiment on removal of nonmetallic inclusions by bubble flotation

Shin Ichi Shimasaki, Shunsuke Narita, Shoji Taniguchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

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, d_p/d_b, and agrees with the theoretical results of Sutherland (1948) for a potential flow condition.

Original language	English
Title of host publication	Aluminium Alloys, ICAA 2014
Editors	Knut Marthinsen, Bjørn Holmedal, Yanjun Li
Publisher	Trans Tech Publications Ltd
Pages	1089-1094
Number of pages	6
ISBN (Print)	9783038351207
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.794-796.1089
Publication status	Published - 2014 Jan 1
Externally published	Yes
Event	14th International Conference on Aluminium Alloys, ICAA 2014 - Trondheim, Norway Duration: 2014 Jun 15 → 2014 Jun 19

Publication series

Name	Materials Science Forum
Volume	794-796
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Other

Other	14th International Conference on Aluminium Alloys, ICAA 2014
Country	Norway
City	Trondheim
Period	14/6/15 → 14/6/19

Keywords

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

Access to Document

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Cite this

Model experiment on removal of nonmetallic inclusions by bubble flotation. / Shimasaki, Shin Ichi; Narita, Shunsuke; Taniguchi, Shoji.

Aluminium Alloys, ICAA 2014. ed. / Knut Marthinsen; Bjørn Holmedal; Yanjun Li. Trans Tech Publications Ltd, 2014. p. 1089-1094 (Materials Science Forum; Vol. 794-796).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shimasaki, SI, Narita, S & Taniguchi, S 2014, Model experiment on removal of nonmetallic inclusions by bubble flotation. in K Marthinsen, B Holmedal & Y Li (eds), Aluminium Alloys, ICAA 2014. Materials Science Forum, vol. 794-796, Trans Tech Publications Ltd, pp. 1089-1094, 14th International Conference on Aluminium Alloys, ICAA 2014, Trondheim, Norway, 14/6/15. https://doi.org/10.4028/www.scientific.net/MSF.794-796.1089

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abstract = "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.",

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