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Particle separation by horizontal deflection in paramagnetic fluid

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posted on 06.10.2017, 10:12 by Shi-Xiao Liu, Mark LeaperMark Leaper, Nicholas J. Miles
This paper describes the horizontal deflection behaviour of the streams of particles in paramagnetic fluids under a high-gradient superconducting magnetic field, which is the continued work on the exploration of particle magneto-Archimedes levitation. Based on the previous work on the horizontal deflection of a single particle, a glass box and collector had been designed to observe the movement of particle group in paramagnetic fluids. To get the exact separation efficiency, the method of "sink-float" involved the high density fluid polytungstate (dense medium separation) and MLA (Mineral Liberation Analyser) was performed. It was found that the particles were deflected and settled at certain positions on the container floor due to the combined forces of gravity and magneto-Archimedes forces as well as a lateral buoyancy (displacement) force. Mineral particles with different densities and susceptibilities could be deflected to different positions, thus producing groups of similar types of particles. The work described here, although in its infancy, could form the basis of new approach of separating particles based on a combination of susceptibility and density.

Funding

This work was funded as part of the UK Engineering and Physical Sciences Research Council Basic Technology Programme: Magnetic Levitation Technology for Mineral Separation, Nanomaterials, and Biosystems for Space Exploration (GR/S83005/01).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Powder Technology

Volume

267

Pages

26 - 38

Citation

LIU, S., LEAPER, M. and MILES, N., 2014. Particle separation by horizontal deflection in paramagnetic fluid. Powder Technology, 267, pp.26-38.

Publisher

© Elsevier

Version

NA (Not Applicable or Unknown)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014-07-11

ISSN

0032-5910

eISSN

1873-328X

Language

en

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